386356631641 has 4 divisors (see below), whose sum is σ = 386399365072. Its totient is φ = 386313898212.

The previous prime is 386356631603. The next prime is 386356631671. The reversal of 386356631641 is 146136653683.

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 a de Polignac number, because none of the positive numbers 2^k-386356631641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386356631671) 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, 21353151 + ... + 21371236.

It is an arithmetic number, because the mean of its divisors is an integer number (96599841268).

Almost surely, 2^386356631641 is an apocalyptic number.

It is an amenable number.

386356631641 is a deficient number, since it is larger than the sum of its proper divisors (42733431).

386356631641 is an equidigital number, since it uses as much as digits as its factorization.

386356631641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42733430.

The product of its digits is 5598720, while the sum is 52.

The spelling of 386356631641 in words is "three hundred eighty-six billion, three hundred fifty-six million, six hundred thirty-one thousand, six hundred forty-one".