380440377680 has 80 divisors (see below), whose sum is σ = 968604683904. Its totient is φ = 137815856640.

The previous prime is 380440377671. The next prime is 380440377721. The reversal of 380440377680 is 86773044083.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590459 + ... + 1053338.

Almost surely, 2^380440377680 is an apocalyptic number.

It is an amenable number.

380440377680 is an abundant number, since it is smaller than the sum of its proper divisors (588164306224).

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

380440377680 is a wasteful number, since it uses less digits than its factorization.

380440377680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644084 (or 1644078 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 380440377680 in words is "three hundred eighty billion, four hundred forty million, three hundred seventy-seven thousand, six hundred eighty".