6386988643317 has 12 divisors (see below), whose sum is σ = 9225673108704. Its totient is φ = 4257981884520.

The previous prime is 6386988643313. The next prime is 6386988643381. The reversal of 6386988643317 is 7133468896836.

It is not a de Polignac number, because 6386988643317 - 2² = 6386988643313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6386988643313) 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, 5095008 + ... + 6223590.

It is an arithmetic number, because the mean of its divisors is an integer number (768806092392).

Almost surely, 2^{6386988643317} is an apocalyptic number.

It is an amenable number.

6386988643317 is a deficient number, since it is larger than the sum of its proper divisors (2838684465387).

6386988643317 is a wasteful number, since it uses less digits than its factorization.

6386988643317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757400 (or 1757397 counting only the distinct ones).

The product of its digits is 752467968, while the sum is 72.

The spelling of 6386988643317 in words is "six trillion, three hundred eighty-six billion, nine hundred eighty-eight million, six hundred forty-three thousand, three hundred seventeen".