39797823679 has 16 divisors (see below), whose sum is σ = 40716251136. Its totient is φ = 38888546400.

The previous prime is 39797823677. The next prime is 39797823713. The reversal of 39797823679 is 97632879793.

It is a cyclic number.

It is not a de Polignac number, because 39797823679 - 2¹ = 39797823677 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 (39797823677) 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, 11031694 + ... + 11035300.

It is an arithmetic number, because the mean of its divisors is an integer number (2544765696).

Almost surely, 2^39797823679 is an apocalyptic number.

39797823679 is a deficient number, since it is larger than the sum of its proper divisors (918427457).

39797823679 is a wasteful number, since it uses less digits than its factorization.

39797823679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806.

The product of its digits is 216040608, while the sum is 70.

The spelling of 39797823679 in words is "thirty-nine billion, seven hundred ninety-seven million, eight hundred twenty-three thousand, six hundred seventy-nine".