138718272835 has 16 divisors (see below), whose sum is σ = 170644674816. Its totient is φ = 108195560928.

The previous prime is 138718272829. The next prime is 138718272841. The reversal of 138718272835 is 538272817831.

It is an interprime number because it is at equal distance from previous prime (138718272829) and next prime (138718272841).

It is a cyclic number.

It is not a de Polignac number, because 138718272835 - 2⁹ = 138718272323 is a prime.

It is a Duffinian 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, 472159 + ... + 707368.

It is an arithmetic number, because the mean of its divisors is an integer number (10665292176).

Almost surely, 2^138718272835 is an apocalyptic number.

138718272835 is a deficient number, since it is larger than the sum of its proper divisors (31926401981).

138718272835 is a wasteful number, since it uses less digits than its factorization.

138718272835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180122.

The product of its digits is 4515840, while the sum is 55.

The spelling of 138718272835 in words is "one hundred thirty-eight billion, seven hundred eighteen million, two hundred seventy-two thousand, eight hundred thirty-five".