6399764848 has 20 divisors (see below), whose sum is σ = 12400808728. Its totient is φ = 3199556160.

The previous prime is 6399764827. The next prime is 6399764897. The reversal of 6399764848 is 8484679936.

It is a self number, because there is not a number n which added to its sum of digits gives 6399764848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250390 + ... + 274762.

Almost surely, 2^6399764848 is an apocalyptic number.

It is an amenable number.

6399764848 is a deficient number, since it is larger than the sum of its proper divisors (6001043880).

6399764848 is a wasteful number, since it uses less digits than its factorization.

6399764848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40792 (or 40786 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 64.

The square root of 6399764848 is about 79998.5302864996. The cubic root of 6399764848 is about 1856.6127940229.

The spelling of 6399764848 in words is "six billion, three hundred ninety-nine million, seven hundred sixty-four thousand, eight hundred forty-eight".