138302814815 has 16 divisors (see below), whose sum is σ = 191701015200. Its totient is φ = 94667166720.

The previous prime is 138302814787. The next prime is 138302814821. The reversal of 138302814815 is 518418203831.

It is not a de Polignac number, because 138302814815 - 2²² = 138298620511 is a prime.

It is a congruent 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, 73957790 + ... + 73959659.

It is an arithmetic number, because the mean of its divisors is an integer number (11981313450).

Almost surely, 2^138302814815 is an apocalyptic number.

138302814815 is a deficient number, since it is larger than the sum of its proper divisors (53398200385).

138302814815 is a wasteful number, since it uses less digits than its factorization.

138302814815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147917482.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 138302814815 in words is "one hundred thirty-eight billion, three hundred two million, eight hundred fourteen thousand, eight hundred fifteen".