12492516867540 has 96 divisors (see below), whose sum is σ = 35101993489920. Its totient is φ = 3319646668800.

The previous prime is 12492516867539. The next prime is 12492516867547. The reversal of 12492516867540 is 4576861529421.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492516867547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21973381 + ... + 22534739.

It is an arithmetic number, because the mean of its divisors is an integer number (365645765520).

Almost surely, 2^{12492516867540} is an apocalyptic number.

12492516867540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12492516867540 is an abundant number, since it is smaller than the sum of its proper divisors (22609476622380).

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

12492516867540 is a wasteful number, since it uses less digits than its factorization.

12492516867540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562673 (or 562671 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 12492516867540 in words is "twelve trillion, four hundred ninety-two billion, five hundred sixteen million, eight hundred sixty-seven thousand, five hundred forty".