39999952448 has 28 divisors (see below), whose sum is σ = 80379661440. Its totient is φ = 19746809472.

The previous prime is 39999952439. The next prime is 39999952453. The reversal of 39999952448 is 84425999993.

It is a super-2 number, since 2×39999952448² (a number of 22 digits) contains 22 as substring.

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, 3950636 + ... + 3960747.

Almost surely, 2^39999952448 is an apocalyptic number.

It is an amenable number.

39999952448 is an abundant number, since it is smaller than the sum of its proper divisors (40379708992).

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

39999952448 is an equidigital number, since it uses as much as digits as its factorization.

39999952448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911474 (or 7911464 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 71.

The spelling of 39999952448 in words is "thirty-nine billion, nine hundred ninety-nine million, nine hundred fifty-two thousand, four hundred forty-eight".