139639805008 has 80 divisors (see below), whose sum is σ = 303830928576. Its totient is φ = 61613291520.

The previous prime is 139639804973. The next prime is 139639805017. The reversal of 139639805008 is 800508936931.

139639805008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2794935 + ... + 2844457.

Almost surely, 2^139639805008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139639805008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151915464288).

139639805008 is an abundant number, since it is smaller than the sum of its proper divisors (164191123568).

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

139639805008 is a wasteful number, since it uses less digits than its factorization.

139639805008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50012 (or 50006 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 139639805008 in words is "one hundred thirty-nine billion, six hundred thirty-nine million, eight hundred five thousand, eight".