39979929601 has 4 divisors (see below), whose sum is σ = 39982068400. Its totient is φ = 39977790804.

The previous prime is 39979929593. The next prime is 39979929611. The reversal of 39979929601 is 10692997993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39979929601 - 2³ = 39979929593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39979929611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041111 + ... + 1078828.

It is an arithmetic number, because the mean of its divisors is an integer number (9995517100).

Almost surely, 2^39979929601 is an apocalyptic number.

It is an amenable number.

39979929601 is a deficient number, since it is larger than the sum of its proper divisors (2138799).

39979929601 is a wasteful number, since it uses less digits than its factorization.

39979929601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138798.

The product of its (nonzero) digits is 14880348, while the sum is 64.

The spelling of 39979929601 in words is "thirty-nine billion, nine hundred seventy-nine million, nine hundred twenty-nine thousand, six hundred one".