138190547715 has 32 divisors (see below), whose sum is σ = 245159523072. Its totient is φ = 65903088000.

The previous prime is 138190547657. The next prime is 138190547731. The reversal of 138190547715 is 517745091831.

It is not a de Polignac number, because 138190547715 - 2⁸ = 138190547459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6854841 + ... + 6874970.

It is an arithmetic number, because the mean of its divisors is an integer number (7661235096).

Almost surely, 2^138190547715 is an apocalyptic number.

138190547715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138190547715 is a deficient number, since it is larger than the sum of its proper divisors (106968975357).

138190547715 is a wasteful number, since it uses less digits than its factorization.

138190547715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13729891.

The product of its (nonzero) digits is 1058400, while the sum is 51.

The spelling of 138190547715 in words is "one hundred thirty-eight billion, one hundred ninety million, five hundred forty-seven thousand, seven hundred fifteen".