39639070674 has 72 divisors (see below), whose sum is σ = 103351760460. Its totient is φ = 10934908992.

The previous prime is 39639070643. The next prime is 39639070693. The reversal of 39639070674 is 47607093693.

It can be written as a sum of positive squares in 2 ways, for example, as 38183114025 + 1455956649 = 195405^2 + 38157^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39639070674.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 749289 + ... + 800444.

Almost surely, 2^39639070674 is an apocalyptic number.

39639070674 is an abundant number, since it is smaller than the sum of its proper divisors (63712689786).

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

39639070674 is a wasteful number, since it uses less digits than its factorization.

39639070674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549784 (or 1549774 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 54.

The spelling of 39639070674 in words is "thirty-nine billion, six hundred thirty-nine million, seventy thousand, six hundred seventy-four".