39623666980 has 24 divisors (see below), whose sum is σ = 88104389688. Its totient is φ = 14917145088.

The previous prime is 39623666959. The next prime is 39623666993. The reversal of 39623666980 is 8966632693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16844405796 + 22779261184 = 129786^2 + 150928^2 .

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, 58269759 + ... + 58270438.

It is an arithmetic number, because the mean of its divisors is an integer number (3671016237).

Almost surely, 2^39623666980 is an apocalyptic number.

It is an amenable number.

39623666980 is an abundant number, since it is smaller than the sum of its proper divisors (48480722708).

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

39623666980 is a wasteful number, since it uses less digits than its factorization.

39623666980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116540223 (or 116540221 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 58.

The spelling of 39623666980 in words is "thirty-nine billion, six hundred twenty-three million, six hundred sixty-six thousand, nine hundred eighty".