3139505688 has 48 divisors (see below), whose sum is σ = 8627162040. Its totient is φ = 951364480.

The previous prime is 3139505647. The next prime is 3139505689. The reversal of 3139505688 is 8865059313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139505689) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 537645 + ... + 543452.

Almost surely, 2^3139505688 is an apocalyptic number.

It is an amenable number.

3139505688 is an abundant number, since it is smaller than the sum of its proper divisors (5487656352).

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

3139505688 is a wasteful number, since it uses less digits than its factorization.

3139505688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081128 (or 1081113 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 3139505688 is about 56031.2920429290. The cubic root of 3139505688 is about 1464.2675053894.

The spelling of 3139505688 in words is "three billion, one hundred thirty-nine million, five hundred five thousand, six hundred eighty-eight".