381354688880 has 40 divisors (see below), whose sum is σ = 967254167664. Its totient is φ = 138674432000.

The previous prime is 381354688879. The next prime is 381354688919. The reversal of 381354688880 is 88886453183.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216677921 + ... + 216679680.

Almost surely, 2^381354688880 is an apocalyptic number.

It is an amenable number.

381354688880 is an abundant number, since it is smaller than the sum of its proper divisors (585899478784).

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

381354688880 is a wasteful number, since it uses less digits than its factorization.

381354688880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433357625 (or 433357619 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 62.

The spelling of 381354688880 in words is "three hundred eighty-one billion, three hundred fifty-four million, six hundred eighty-eight thousand, eight hundred eighty".