139137841920 has 576 divisors, whose sum is σ = 558743915520. Its totient is φ = 28904325120.

The previous prime is 139137841919. The next prime is 139137841937. The reversal of 139137841920 is 29148731931.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 139137841920.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35775336 + ... + 35779224.

It is an arithmetic number, because the mean of its divisors is an integer number (970041520).

Almost surely, 2^139137841920 is an apocalyptic number.

139137841920 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 139137841920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279371957760).

139137841920 is an abundant number, since it is smaller than the sum of its proper divisors (419606073600).

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

139137841920 is an equidigital number, since it uses as much as digits as its factorization.

139137841920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953 (or 3917 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 139137841920 in words is "one hundred thirty-nine billion, one hundred thirty-seven million, eight hundred forty-one thousand, nine hundred twenty".