139979671972740 has 72 divisors (see below), whose sum is σ = 446952636836160. Its totient is φ = 35363285550144.

The previous prime is 139979671972697. The next prime is 139979671972781. The reversal of 139979671972740 is 47279176979931.

139979671972740 is a `hidden beast` number, since 1 + 3 + 99 + 79 + 6 + 7 + 197 + 274 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 139979671972740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20464860904 + ... + 20464867743.

Almost surely, 2^{139979671972740} is an apocalyptic number.

139979671972740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139979671972740 is an abundant number, since it is smaller than the sum of its proper divisors (306972964863420).

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

139979671972740 is a wasteful number, since it uses less digits than its factorization.

139979671972740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40929728681 (or 40929728676 counting only the distinct ones).

The product of its (nonzero) digits is 2268426384, while the sum is 81.

The spelling of 139979671972740 in words is "one hundred thirty-nine trillion, nine hundred seventy-nine billion, six hundred seventy-one million, nine hundred seventy-two thousand, seven hundred forty".