7899673992 has 64 divisors (see below), whose sum is σ = 22789678080. Its totient is φ = 2235131712.

The previous prime is 7899673973. The next prime is 7899674021. The reversal of 7899673992 is 2993769987.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210958 + ... + 245565.

It is an arithmetic number, because the mean of its divisors is an integer number (356088720).

Almost surely, 2^7899673992 is an apocalyptic number.

It is an amenable number.

7899673992 is an abundant number, since it is smaller than the sum of its proper divisors (14890004088).

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

7899673992 is a wasteful number, since it uses less digits than its factorization.

7899673992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456642 (or 456638 counting only the distinct ones).

The product of its digits is 92588832, while the sum is 69.

The square root of 7899673992 is about 88880.1102159533. The cubic root of 7899673992 is about 1991.6043048005.

The spelling of 7899673992 in words is "seven billion, eight hundred ninety-nine million, six hundred seventy-three thousand, nine hundred ninety-two".