15542976792 has 96 divisors (see below), whose sum is σ = 45229363200. Its totient is φ = 4438115136.

The previous prime is 15542976781. The next prime is 15542976817. The reversal of 15542976792 is 29767924551.

It is a super-2 number, since 2×15542976792² (a number of 21 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 23 ways as a sum of consecutive naturals, for example, 2630113 + ... + 2636015.

It is an arithmetic number, because the mean of its divisors is an integer number (471139200).

Almost surely, 2^15542976792 is an apocalyptic number.

15542976792 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 15542976792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22614681600).

15542976792 is an abundant number, since it is smaller than the sum of its proper divisors (29686386408).

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

15542976792 is a wasteful number, since it uses less digits than its factorization.

15542976792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165 (or 8154 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 57.

It can be divided in two parts, 155429 and 76792, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 15542976792 in words is "fifteen billion, five hundred forty-two million, nine hundred seventy-six thousand, seven hundred ninety-two".