7791284564 has 24 divisors (see below), whose sum is σ = 15914115840. Its totient is φ = 3268076256.

The previous prime is 7791284549. The next prime is 7791284581. The reversal of 7791284564 is 4654821977.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2958899 + ... + 2961530.

It is an arithmetic number, because the mean of its divisors is an integer number (663088160).

Almost surely, 2^7791284564 is an apocalyptic number.

It is an amenable number.

7791284564 is an abundant number, since it is smaller than the sum of its proper divisors (8122831276).

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

7791284564 is a wasteful number, since it uses less digits than its factorization.

7791284564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920487 (or 5920485 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The square root of 7791284564 is about 88268.2534323638. The cubic root of 7791284564 is about 1982.4535583728.

The spelling of 7791284564 in words is "seven billion, seven hundred ninety-one million, two hundred eighty-four thousand, five hundred sixty-four".