1992469259520 has 720 divisors, whose sum is σ = 7679659502592. Its totient is φ = 491811471360.

The previous prime is 1992469259483. The next prime is 1992469259563. The reversal of 1992469259520 is 259529642991.

1992469259520 is a `hidden beast` number, since 1 + 9 + 9 + 24 + 69 + 25 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×1992469259520² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 73910364 + ... + 73937316.

Almost surely, 2^{1992469259520} is an apocalyptic number.

1992469259520 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 1992469259520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3839829751296).

1992469259520 is an abundant number, since it is smaller than the sum of its proper divisors (5687190243072).

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

1992469259520 is a wasteful number, since it uses less digits than its factorization.

1992469259520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27040 (or 27017 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 1992469259520 in words is "one trillion, nine hundred ninety-two billion, four hundred sixty-nine million, two hundred fifty-nine thousand, five hundred twenty".