6390948664836 has 72 divisors (see below), whose sum is σ = 16258639421024. Its totient is φ = 2116663280640.

The previous prime is 6390948664831. The next prime is 6390948664879. The reversal of 6390948664836 is 6384668490936.

6390948664836 is a `hidden beast` number, since 6 + 3 + 9 + 0 + 9 + 486 + 64 + 83 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (6390948664831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5067735 + ... + 6201921.

Almost surely, 2^{6390948664836} is an apocalyptic number.

It is an amenable number.

6390948664836 is an abundant number, since it is smaller than the sum of its proper divisors (9867690756188).

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

6390948664836 is a wasteful number, since it uses less digits than its factorization.

6390948664836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135201 (or 1135196 counting only the distinct ones).

The product of its (nonzero) digits is 967458816, while the sum is 72.

The spelling of 6390948664836 in words is "six trillion, three hundred ninety billion, nine hundred forty-eight million, six hundred sixty-four thousand, eight hundred thirty-six".