7991828264 has 48 divisors (see below), whose sum is σ = 17443296180. Its totient is φ = 3422684160.

The previous prime is 7991828261. The next prime is 7991828269. The reversal of 7991828264 is 4628281997.

It can be written as a sum of positive squares in 2 ways, for example, as 6829700164 + 1162128100 = 82642^2 + 34090^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (7991828261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 629144 + ... + 641720.

Almost surely, 2^7991828264 is an apocalyptic number.

It is an amenable number.

7991828264 is an abundant number, since it is smaller than the sum of its proper divisors (9451467916).

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

7991828264 is a wasteful number, since it uses less digits than its factorization.

7991828264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218 (or 14207 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 7991828264 is about 89397.0260355455. The cubic root of 7991828264 is about 1999.3187900028.

The spelling of 7991828264 in words is "seven billion, nine hundred ninety-one million, eight hundred twenty-eight thousand, two hundred sixty-four".