7923689984 has 40 divisors (see below), whose sum is σ = 18093612768. Its totient is φ = 3395865600.

The previous prime is 7923689959. The next prime is 7923690001. The reversal of 7923689984 is 4899863297.

It is a self number, because there is not a number n which added to its sum of digits gives 7923689984.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101842 + ... + 1109009.

Almost surely, 2^7923689984 is an apocalyptic number.

It is an amenable number.

7923689984 is an abundant number, since it is smaller than the sum of its proper divisors (10169922784).

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

7923689984 is an equidigital number, since it uses as much as digits as its factorization.

7923689984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210876 (or 2210860 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 65.

The square root of 7923689984 is about 89015.1109868431. The cubic root of 7923689984 is about 1993.6205046556.

The spelling of 7923689984 in words is "seven billion, nine hundred twenty-three million, six hundred eighty-nine thousand, nine hundred eighty-four".