380444731856 has 20 divisors (see below), whose sum is σ = 842413335072. Its totient is φ = 163047742176.

The previous prime is 380444731781. The next prime is 380444731859. The reversal of 380444731856 is 658137444083.

It is a junction number, because it is equal to n+sod(n) for n = 380444731798 and 380444731807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380444731859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698413870 + ... + 1698414093.

Almost surely, 2^380444731856 is an apocalyptic number.

It is an amenable number.

380444731856 is an abundant number, since it is smaller than the sum of its proper divisors (461968603216).

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

380444731856 is a wasteful number, since it uses less digits than its factorization.

380444731856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396827978 (or 3396827972 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 380444731856 in words is "three hundred eighty billion, four hundred forty-four million, seven hundred thirty-one thousand, eight hundred fifty-six".