39479531579 has 32 divisors (see below), whose sum is σ = 45048721536. Its totient is φ = 34387752960.

The previous prime is 39479531549. The next prime is 39479531593. The reversal of 39479531579 is 97513597493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39479531579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39479531549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2610989 + ... + 2626065.

It is an arithmetic number, because the mean of its divisors is an integer number (1407772548).

Almost surely, 2^39479531579 is an apocalyptic number.

39479531579 is a deficient number, since it is larger than the sum of its proper divisors (5569189957).

39479531579 is a wasteful number, since it uses less digits than its factorization.

39479531579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15335.

The product of its digits is 32148900, while the sum is 62.

The spelling of 39479531579 in words is "thirty-nine billion, four hundred seventy-nine million, five hundred thirty-one thousand, five hundred seventy-nine".