13257266531992 has 64 divisors (see below), whose sum is σ = 28543473100800. Its totient is φ = 5654690369280.

The previous prime is 13257266531987. The next prime is 13257266532017. The reversal of 13257266531992 is 29913566275231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13257266531992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47051692 + ... + 47332612.

It is an arithmetic number, because the mean of its divisors is an integer number (445991767200).

Almost surely, 2^{13257266531992} is an apocalyptic number.

It is an amenable number.

13257266531992 is an abundant number, since it is smaller than the sum of its proper divisors (15286206568808).

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

13257266531992 is a wasteful number, since it uses less digits than its factorization.

13257266531992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284936 (or 284932 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 61.

The spelling of 13257266531992 in words is "thirteen trillion, two hundred fifty-seven billion, two hundred sixty-six million, five hundred thirty-one thousand, nine hundred ninety-two".