381944437488 has 60 divisors (see below), whose sum is σ = 1069650192520. Its totient is φ = 127227120768.

The previous prime is 381944437487. The next prime is 381944437489. The reversal of 381944437488 is 884734449183.

381944437488 is a `hidden beast` number, since 3 + 8 + 194 + 4 + 437 + 4 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (381944437487) and next prime (381944437489).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381944437487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703498 + ... + 1121961.

Almost surely, 2^381944437488 is an apocalyptic number.

It is an amenable number.

381944437488 is an abundant number, since it is smaller than the sum of its proper divisors (687705755032).

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

381944437488 is a wasteful number, since it uses less digits than its factorization.

381944437488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826926 (or 1826917 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 63.

The spelling of 381944437488 in words is "three hundred eighty-one billion, nine hundred forty-four million, four hundred thirty-seven thousand, four hundred eighty-eight".