380656628013 has 4 divisors (see below), whose sum is σ = 507542170688. Its totient is φ = 253771085340.

The previous prime is 380656627997. The next prime is 380656628017. The reversal of 380656628013 is 310826656083.

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 not a de Polignac number, because 380656628013 - 2⁴ = 380656627997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380656628017) 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, 63442771333 + ... + 63442771338.

It is an arithmetic number, because the mean of its divisors is an integer number (126885542672).

Almost surely, 2^380656628013 is an apocalyptic number.

It is an amenable number.

380656628013 is a deficient number, since it is larger than the sum of its proper divisors (126885542675).

380656628013 is a wasteful number, since it uses less digits than its factorization.

380656628013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126885542674.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 380656628013 in words is "three hundred eighty billion, six hundred fifty-six million, six hundred twenty-eight thousand, thirteen".