7899116432 has 20 divisors (see below), whose sum is σ = 15555434076. Its totient is φ = 3884810880.

The previous prime is 7899116399. The next prime is 7899116437. The reversal of 7899116432 is 2346119987.

It can be written as a sum of positive squares in 2 ways, for example, as 270142096 + 7628974336 = 16436^2 + 87344^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7899116437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4045703 + ... + 4047654.

Almost surely, 2^7899116432 is an apocalyptic number.

It is an amenable number.

7899116432 is a deficient number, since it is larger than the sum of its proper divisors (7656317644).

7899116432 is a wasteful number, since it uses less digits than its factorization.

7899116432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8093426 (or 8093420 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 7899116432 is about 88876.9735758368. The cubic root of 7899116432 is about 1991.5574478026.

The spelling of 7899116432 in words is "seven billion, eight hundred ninety-nine million, one hundred sixteen thousand, four hundred thirty-two".