381872447008 has 24 divisors (see below), whose sum is σ = 809643025548. Its totient is φ = 176248821504.

The previous prime is 381872446993. The next prime is 381872447027. The reversal of 381872447008 is 800744278183.

It can be written as a sum of positive squares in 2 ways, for example, as 375264057744 + 6608389264 = 612588^2 + 81292^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458980891 + ... + 458981722.

Almost surely, 2^381872447008 is an apocalyptic number.

It is an amenable number.

381872447008 is an abundant number, since it is smaller than the sum of its proper divisors (427770578540).

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

381872447008 is a wasteful number, since it uses less digits than its factorization.

381872447008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917962636 (or 917962628 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 381872447008 in words is "three hundred eighty-one billion, eight hundred seventy-two million, four hundred forty-seven thousand, eight".