139378040832 has 112 divisors (see below), whose sum is σ = 376135331040. Its totient is φ = 45898924032.

The previous prime is 139378040801. The next prime is 139378040861. The reversal of 139378040832 is 238040873931.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005644 + ... + 2073972.

It is an arithmetic number, because the mean of its divisors is an integer number (3358351170).

Almost surely, 2^139378040832 is an apocalyptic number.

139378040832 is a gapful number since it is divisible by the number (12) 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 139378040832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188067665520).

139378040832 is an abundant number, since it is smaller than the sum of its proper divisors (236757290208).

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

139378040832 is an frugal number, since it uses more digits than its factorization.

139378040832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68441 (or 68417 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 139378040832 in words is "one hundred thirty-nine billion, three hundred seventy-eight million, forty thousand, eight hundred thirty-two".