139102870640 has 60 divisors (see below), whose sum is σ = 330987484344. Its totient is φ = 54338621568.

The previous prime is 139102870639. The next prime is 139102870679. The reversal of 139102870640 is 46078201931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21871781 + ... + 21878139.

Almost surely, 2^139102870640 is an apocalyptic number.

139102870640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139102870640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165493742172).

139102870640 is an abundant number, since it is smaller than the sum of its proper divisors (191884613704).

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

139102870640 is an frugal number, since it uses more digits than its factorization.

139102870640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12774 (or 6409 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 139102870640 in words is "one hundred thirty-nine billion, one hundred two million, eight hundred seventy thousand, six hundred forty".