19488994180992 has 448 divisors, whose sum is σ = 66577048940160. Its totient is φ = 5564175897600.

The previous prime is 19488994180961. The next prime is 19488994180993. The reversal of 19488994180992 is 29908149988491.

It is a happy number.

19488994180992 is a `hidden beast` number, since 1 + 9 + 488 + 9 + 9 + 41 + 8 + 0 + 9 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19488994180993) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 947759703 + ... + 947780265.

Almost surely, 2^{19488994180992} is an apocalyptic number.

19488994180992 is a gapful number since it is divisible by the number (12) 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 19488994180992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33288524470080).

19488994180992 is an abundant number, since it is smaller than the sum of its proper divisors (47088054759168).

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

19488994180992 is an equidigital number, since it uses as much as digits as its factorization.

19488994180992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22053 (or 22026 counting only the distinct ones).

The product of its (nonzero) digits is 967458816, while the sum is 81.

The spelling of 19488994180992 in words is "nineteen trillion, four hundred eighty-eight billion, nine hundred ninety-four million, one hundred eighty thousand, nine hundred ninety-two".