6368849270657 has 4 divisors (see below), whose sum is σ = 6368915088816. Its totient is φ = 6368783452500.

The previous prime is 6368849270569. The next prime is 6368849270683. The reversal of 6368849270657 is 7560729488636.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6368849270657 - 2²⁰ = 6368848222081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6368849270957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32763719 + ... + 32957532.

It is an arithmetic number, because the mean of its divisors is an integer number (1592228772204).

Almost surely, 2^{6368849270657} is an apocalyptic number.

It is an amenable number.

6368849270657 is a deficient number, since it is larger than the sum of its proper divisors (65818159).

6368849270657 is an equidigital number, since it uses as much as digits as its factorization.

6368849270657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65818158.

The product of its (nonzero) digits is 731566080, while the sum is 71.

The spelling of 6368849270657 in words is "six trillion, three hundred sixty-eight billion, eight hundred forty-nine million, two hundred seventy thousand, six hundred fifty-seven".