39980299625644 has 30 divisors (see below), whose sum is σ = 81621588395284. Its totient is φ = 17134414121160.

The previous prime is 39980299625639. The next prime is 39980299625677. The reversal of 39980299625644 is 44652699208993.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2081430402 + ... + 2081449609.

Almost surely, 2^{39980299625644} is an apocalyptic number.

It is an amenable number.

39980299625644 is an abundant number, since it is smaller than the sum of its proper divisors (41641288769640).

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

39980299625644 is an equidigital number, since it uses as much as digits as its factorization.

39980299625644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162880043 (or 4162880020 counting only the distinct ones).

The product of its (nonzero) digits is 1813985280, while the sum is 76.

The spelling of 39980299625644 in words is "thirty-nine trillion, nine hundred eighty billion, two hundred ninety-nine million, six hundred twenty-five thousand, six hundred forty-four".