13872240904 has 8 divisors (see below), whose sum is σ = 26010451710. Its totient is φ = 6936120448.

The previous prime is 13872240901. The next prime is 13872240919. The reversal of 13872240904 is 40904227831.

It can be written as a sum of positive squares in only one way, i.e., 13271500804 + 600740100 = 115202^2 + 24510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13872240904² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13872240901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867015049 + ... + 867015064.

Almost surely, 2^13872240904 is an apocalyptic number.

It is an amenable number.

13872240904 is a deficient number, since it is larger than the sum of its proper divisors (12138210806).

13872240904 is a wasteful number, since it uses less digits than its factorization.

13872240904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734030119 (or 1734030115 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 13872240904 in words is "thirteen billion, eight hundred seventy-two million, two hundred forty thousand, nine hundred four".