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1992461472480 = 253541229442109
BaseRepresentation
bin11100111111100111111…
…101010101001011100000
321001110220001202222022010
4130333213331111023200
5230121030114104410
64123154004112520
7263644024035513
oct34774775251340
97043801688263
101992461472480
116a8aa8615556
1228219b395740
13115b71806abb
146c6155ccd7a
1536c66289c20
hex1cfe7f552e0

1992461472480 has 192 divisors, whose sum is σ = 6457423291200. Its totient is φ = 516099194880.

The previous prime is 1992461472461. The next prime is 1992461472481. The reversal of 1992461472480 is 842741642991.

It is a self number, because there is not a number n which added to its sum of digits gives 1992461472480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992461472481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4285666 + ... + 4727774.

It is an arithmetic number, because the mean of its divisors is an integer number (33632412975).

Almost surely, 21992461472480 is an apocalyptic number.

1992461472480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992461472480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3228711645600).

1992461472480 is an abundant number, since it is smaller than the sum of its proper divisors (4464961818720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992461472480 is a wasteful number, since it uses less digits than its factorization.

1992461472480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442397 (or 442389 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 1992461472480 in words is "one trillion, nine hundred ninety-two billion, four hundred sixty-one million, four hundred seventy-two thousand, four hundred eighty".