1338951572604 has 72 divisors (see below), whose sum is σ = 3659912762688. Its totient is φ = 411125713920.

The previous prime is 1338951572477. The next prime is 1338951572639. The reversal of 1338951572604 is 4062751598331.

It is a happy number.

1338951572604 is a `hidden beast` number, since 1 + 3 + 3 + 8 + 9 + 5 + 1 + 572 + 60 + 4 = 666.

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, 23246017 + ... + 23303544.

It is an arithmetic number, because the mean of its divisors is an integer number (50832121704).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1338951572604 = 2677903145208, but 3⋅1338951572604 = 4016854717812 is not.

Almost surely, 2^{1338951572604} is an apocalyptic number.

It is an amenable number.

1338951572604 is an abundant number, since it is smaller than the sum of its proper divisors (2320961190084).

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

1338951572604 is a wasteful number, since it uses less digits than its factorization.

1338951572604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46549635 (or 46549630 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 1338951572604 in words is "one trillion, three hundred thirty-eight billion, nine hundred fifty-one million, five hundred seventy-two thousand, six hundred four".