6400669763697 has 16 divisors (see below), whose sum is σ = 9369364896192. Its totient is φ = 3854485552320.

The previous prime is 6400669763689. The next prime is 6400669763699. The reversal of 6400669763697 is 7963679660046.

It is not a de Polignac number, because 6400669763697 - 2³ = 6400669763689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6400669763699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617700838 + ... + 617711199.

It is an arithmetic number, because the mean of its divisors is an integer number (585585306012).

Almost surely, 2^{6400669763697} is an apocalyptic number.

It is an amenable number.

6400669763697 is a deficient number, since it is larger than the sum of its proper divisors (2968695132495).

6400669763697 is a wasteful number, since it uses less digits than its factorization.

6400669763697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235412208.

The product of its (nonzero) digits is 370355328, while the sum is 69.

The spelling of 6400669763697 in words is "six trillion, four hundred billion, six hundred sixty-nine million, seven hundred sixty-three thousand, six hundred ninety-seven".