7999545472 has 16 divisors (see below), whose sum is σ = 15936594750. Its totient is φ = 3999772672.

The previous prime is 7999545461. The next prime is 7999545481. The reversal of 7999545472 is 2745459997.

It can be written as a sum of positive squares in only one way, i.e., 6649423936 + 1350121536 = 81544^2 + 36744^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 7999545472.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31248097 + ... + 31248352.

Almost surely, 2^7999545472 is an apocalyptic number.

It is an amenable number.

7999545472 is a deficient number, since it is larger than the sum of its proper divisors (7937049278).

7999545472 is an equidigital number, since it uses as much as digits as its factorization.

7999545472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62496463 (or 62496451 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 61.

The square root of 7999545472 is about 89440.1781751356. The cubic root of 7999545472 is about 1999.9621219493.

The spelling of 7999545472 in words is "seven billion, nine hundred ninety-nine million, five hundred forty-five thousand, four hundred seventy-two".