39679497692 has 12 divisors (see below), whose sum is σ = 69507676056. Its totient is φ = 19820161680.

The previous prime is 39679497679. The next prime is 39679497749. The reversal of 39679497692 is 29679497693.

39679497692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892234 + ... + 4900337.

It is an arithmetic number, because the mean of its divisors is an integer number (5792306338).

Almost surely, 2^39679497692 is an apocalyptic number.

It is an amenable number.

39679497692 is a deficient number, since it is larger than the sum of its proper divisors (29828178364).

39679497692 is a wasteful number, since it uses less digits than its factorization.

39679497692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9793588 (or 9793586 counting only the distinct ones).

The product of its digits is 277766496, while the sum is 71.

Subtracting from 39679497692 its reverse (29679497693), we obtain a palindrome (9999999999).

The spelling of 39679497692 in words is "thirty-nine billion, six hundred seventy-nine million, four hundred ninety-seven thousand, six hundred ninety-two".