3979329306625 has 8 divisors (see below), whose sum is σ = 4966202974824. Its totient is φ = 3183463445200.

The previous prime is 3979329306613. The next prime is 3979329306691. The reversal of 3979329306625 is 5266039239793.

It can be written as a sum of positive squares in 4 ways, for example, as 26676362241 + 3952652944384 = 163329^2 + 1988128^2 .

It is not a de Polignac number, because 3979329306625 - 2¹³ = 3979329298433 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 15917317102 + ... + 15917317351.

It is an arithmetic number, because the mean of its divisors is an integer number (620775371853).

Almost surely, 2^{3979329306625} is an apocalyptic number.

It is an amenable number.

3979329306625 is a deficient number, since it is larger than the sum of its proper divisors (986873668199).

3979329306625 is an equidigital number, since it uses as much as digits as its factorization.

3979329306625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31834634468 (or 31834634458 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 64.

The spelling of 3979329306625 in words is "three trillion, nine hundred seventy-nine billion, three hundred twenty-nine million, three hundred six thousand, six hundred twenty-five".