138616512276 has 96 divisors (see below), whose sum is σ = 371096764416. Its totient is φ = 39882960000.

The previous prime is 138616512269. The next prime is 138616512283. The reversal of 138616512276 is 672215616831.

It is an interprime number because it is at equal distance from previous prime (138616512269) and next prime (138616512283).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102700 + ... + 536451.

It is an arithmetic number, because the mean of its divisors is an integer number (3865591296).

Almost surely, 2^138616512276 is an apocalyptic number.

It is an amenable number.

138616512276 is an abundant number, since it is smaller than the sum of its proper divisors (232480252140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138616512276 is a wasteful number, since it uses less digits than its factorization.

138616512276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639253 (or 639251 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 138616512276 in words is "one hundred thirty-eight billion, six hundred sixteen million, five hundred twelve thousand, two hundred seventy-six".