380565871644 has 48 divisors (see below), whose sum is σ = 1038443318528. Its totient is φ = 106204428288.

The previous prime is 380565871643. The next prime is 380565871657. The reversal of 380565871644 is 446178565083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380565871643) 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, 52677157 + ... + 52684380.

Almost surely, 2^380565871644 is an apocalyptic number.

It is an amenable number.

380565871644 is an abundant number, since it is smaller than the sum of its proper divisors (657877446884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380565871644 is a wasteful number, since it uses less digits than its factorization.

380565871644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105361594 (or 105361592 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 380565871644 in words is "three hundred eighty billion, five hundred sixty-five million, eight hundred seventy-one thousand, six hundred forty-four".