23792977540 has 48 divisors (see below), whose sum is σ = 50612490432. Its totient is φ = 9394114176.

The previous prime is 23792977517. The next prime is 23792977543. The reversal of 23792977540 is 4577929732.

It is a happy number.

It is a super-2 number, since 2×23792977540² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23792977543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047627 + ... + 2059213.

It is an arithmetic number, because the mean of its divisors is an integer number (1054426884).

Almost surely, 2^23792977540 is an apocalyptic number.

23792977540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23792977540 is an abundant number, since it is smaller than the sum of its proper divisors (26819512892).

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

23792977540 is a wasteful number, since it uses less digits than its factorization.

23792977540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12916 (or 12914 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 55.

The spelling of 23792977540 in words is "twenty-three billion, seven hundred ninety-two million, nine hundred seventy-seven thousand, five hundred forty".