138951934115 has 8 divisors (see below), whose sum is σ = 166759344240. Its totient is φ = 111150198432.

The previous prime is 138951934073. The next prime is 138951934127. The reversal of 138951934115 is 511439159831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138951934115 - 2⁸ = 138951933859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364549 + ... + 1462838.

It is an arithmetic number, because the mean of its divisors is an integer number (20844918030).

Almost surely, 2^138951934115 is an apocalyptic number.

138951934115 is a deficient number, since it is larger than the sum of its proper divisors (27807410125).

138951934115 is an equidigital number, since it uses as much as digits as its factorization.

138951934115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837221.

The product of its digits is 583200, while the sum is 50.

The spelling of 138951934115 in words is "one hundred thirty-eight billion, nine hundred fifty-one million, nine hundred thirty-four thousand, one hundred fifteen".