39479326685 has 8 divisors (see below), whose sum is σ = 47376679896. Its totient is φ = 31582469440.

The previous prime is 39479326669. The next prime is 39479326693. The reversal of 39479326685 is 58662397493.

It can be written as a sum of positive squares in 4 ways, for example, as 1228572601 + 38250754084 = 35051^2 + 195578^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39479326685 - 2⁴ = 39479326669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82355 + ... + 292815.

It is an arithmetic number, because the mean of its divisors is an integer number (5922084987).

Almost surely, 2^39479326685 is an apocalyptic number.

It is an amenable number.

39479326685 is a deficient number, since it is larger than the sum of its proper divisors (7897353211).

39479326685 is a wasteful number, since it uses less digits than its factorization.

39479326685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247983.

The product of its digits is 58786560, while the sum is 62.

The spelling of 39479326685 in words is "thirty-nine billion, four hundred seventy-nine million, three hundred twenty-six thousand, six hundred eighty-five".