139635374676 has 72 divisors (see below), whose sum is σ = 379704066336. Its totient is φ = 39822793920.

The previous prime is 139635374629. The next prime is 139635374759. The reversal of 139635374676 is 676473536931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104566 + ... + 538706.

It is an arithmetic number, because the mean of its divisors is an integer number (5273667588).

Almost surely, 2^139635374676 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 139635374676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189852033168).

139635374676 is an abundant number, since it is smaller than the sum of its proper divisors (240068691660).

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

139635374676 is a wasteful number, since it uses less digits than its factorization.

139635374676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434709 (or 434700 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 60.

The spelling of 139635374676 in words is "one hundred thirty-nine billion, six hundred thirty-five million, three hundred seventy-four thousand, six hundred seventy-six".