139687437180 has 48 divisors (see below), whose sum is σ = 401695771680. Its totient is φ = 36243226368.

The previous prime is 139687437167. The next prime is 139687437181. The reversal of 139687437180 is 81734786931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 139687437180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139687437181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31458915 + ... + 31463354.

It is an arithmetic number, because the mean of its divisors is an integer number (8368661910).

Almost surely, 2^139687437180 is an apocalyptic number.

139687437180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139687437180 is an abundant number, since it is smaller than the sum of its proper divisors (262008334500).

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

139687437180 is a wasteful number, since it uses less digits than its factorization.

139687437180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62922318 (or 62922316 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 139687437180 in words is "one hundred thirty-nine billion, six hundred eighty-seven million, four hundred thirty-seven thousand, one hundred eighty".