706139664671 has 16 divisors (see below), whose sum is σ = 849663974400. Its totient is φ = 573290107488.

The previous prime is 706139664667. The next prime is 706139664677. The reversal of 706139664671 is 176466931607.

It is not a de Polignac number, because 706139664671 - 2² = 706139664667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706139664677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120365 + ... + 1194473.

It is an arithmetic number, because the mean of its divisors is an integer number (53103998400).

Almost surely, 2^706139664671 is an apocalyptic number.

706139664671 is a deficient number, since it is larger than the sum of its proper divisors (143524309729).

706139664671 is a wasteful number, since it uses less digits than its factorization.

706139664671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079078.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 706139664671 in words is "seven hundred six billion, one hundred thirty-nine million, six hundred sixty-four thousand, six hundred seventy-one".