380777403864 has 128 divisors (see below), whose sum is σ = 1118581228800. Its totient is φ = 106490780160.

The previous prime is 380777403863. The next prime is 380777403899. The reversal of 380777403864 is 468304777083.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380777403863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31887607 + ... + 31899545.

It is an arithmetic number, because the mean of its divisors is an integer number (8738915850).

Almost surely, 2^380777403864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380777403864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559290614400).

380777403864 is an abundant number, since it is smaller than the sum of its proper divisors (737803824936).

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

380777403864 is a wasteful number, since it uses less digits than its factorization.

380777403864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21265 (or 21261 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 57.

The spelling of 380777403864 in words is "three hundred eighty billion, seven hundred seventy-seven million, four hundred three thousand, eight hundred sixty-four".