39960173408 has 24 divisors (see below), whose sum is σ = 80155964448. Its totient is φ = 19603103104.

The previous prime is 39960173339. The next prime is 39960173411. The reversal of 39960173408 is 80437106993.

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, 11779016 + ... + 11782407.

It is an arithmetic number, because the mean of its divisors is an integer number (3339831852).

Almost surely, 2^39960173408 is an apocalyptic number.

It is an amenable number.

39960173408 is an abundant number, since it is smaller than the sum of its proper divisors (40195791040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39960173408 is a wasteful number, since it uses less digits than its factorization.

39960173408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23561486 (or 23561478 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 39960173408 in words is "thirty-nine billion, nine hundred sixty million, one hundred seventy-three thousand, four hundred eight".