13524420972 has 24 divisors (see below), whose sum is σ = 31669292592. Its totient is φ = 4492096000.

The previous prime is 13524420971. The next prime is 13524420979. The reversal of 13524420972 is 27902442531.

It is a self number, because there is not a number n which added to its sum of digits gives 13524420972.

It is not an unprimeable number, because it can be changed into a prime (13524420971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2002029 + ... + 2008772.

It is an arithmetic number, because the mean of its divisors is an integer number (1319553858).

Almost surely, 2^13524420972 is an apocalyptic number.

13524420972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13524420972 is an abundant number, since it is smaller than the sum of its proper divisors (18144871620).

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

13524420972 is a wasteful number, since it uses less digits than its factorization.

13524420972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011089 (or 4011087 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 13524420972 in words is "thirteen billion, five hundred twenty-four million, four hundred twenty thousand, nine hundred seventy-two".