7984991464 has 16 divisors (see below), whose sum is σ = 14993536320. Its totient is φ = 3986715120.

The previous prime is 7984991461. The next prime is 7984991519. The reversal of 7984991464 is 4641994897.

It is not an unprimeable number, because it can be changed into a prime (7984991461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 716704 + ... + 727759.

It is an arithmetic number, because the mean of its divisors is an integer number (937096020).

Almost surely, 2^7984991464 is an apocalyptic number.

It is an amenable number.

7984991464 is a deficient number, since it is larger than the sum of its proper divisors (7008544856).

7984991464 is a wasteful number, since it uses less digits than its factorization.

7984991464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445160 (or 1445156 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 61.

The square root of 7984991464 is about 89358.7794455587. The cubic root of 7984991464 is about 1998.7485057110.

The spelling of 7984991464 in words is "seven billion, nine hundred eighty-four million, nine hundred ninety-one thousand, four hundred sixty-four".