13403872872388 has 6 divisors (see below), whose sum is σ = 23456777526686. Its totient is φ = 6701936436192.

The previous prime is 13403872872347. The next prime is 13403872872391. The reversal of 13403872872388 is 88327827830431.

It can be written as a sum of positive squares in only one way, i.e., 10159378514884 + 3244494357504 = 3187378^2 + 1801248^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675484109045 + ... + 1675484109052.

Almost surely, 2^{13403872872388} is an apocalyptic number.

It is an amenable number.

13403872872388 is a deficient number, since it is larger than the sum of its proper divisors (10052904654298).

13403872872388 is a wasteful number, since it uses less digits than its factorization.

13403872872388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350968218101 (or 3350968218099 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 64.

The spelling of 13403872872388 in words is "thirteen trillion, four hundred three billion, eight hundred seventy-two million, eight hundred seventy-two thousand, three hundred eighty-eight".