380865281508 has 72 divisors (see below), whose sum is σ = 1013598724320. Its totient is φ = 120251260800.

The previous prime is 380865281507. The next prime is 380865281519. The reversal of 380865281508 is 805182568083.

It is a happy number.

380865281508 is a `hidden beast` number, since 3 + 8 + 0 + 8 + 6 + 52 + 81 + 508 = 666.

It is not an unprimeable number, because it can be changed into a prime (380865281507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3919891 + ... + 4015877.

It is an arithmetic number, because the mean of its divisors is an integer number (14077760060).

Almost surely, 2^380865281508 is an apocalyptic number.

380865281508 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

380865281508 is an abundant number, since it is smaller than the sum of its proper divisors (632733442812).

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

380865281508 is a wasteful number, since it uses less digits than its factorization.

380865281508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101817 (or 101812 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 380865281508 in words is "three hundred eighty billion, eight hundred sixty-five million, two hundred eighty-one thousand, five hundred eight".