377857801220 has 24 divisors (see below), whose sum is σ = 798088103064. Its totient is φ = 150269459456.

The previous prime is 377857801187. The next prime is 377857801247. The reversal of 377857801220 is 22108758773.

It can be written as a sum of positive squares in 4 ways, for example, as 239158165444 + 138699635776 = 489038^2 + 372424^2 .

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 7 ways as a sum of consecutive naturals, for example, 54600269 + ... + 54607188.

It is an arithmetic number, because the mean of its divisors is an integer number (33253670961).

Almost surely, 2^377857801220 is an apocalyptic number.

It is an amenable number.

377857801220 is an abundant number, since it is smaller than the sum of its proper divisors (420230301844).

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

377857801220 is a wasteful number, since it uses less digits than its factorization.

377857801220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109207639 (or 109207637 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 50.

The spelling of 377857801220 in words is "three hundred seventy-seven billion, eight hundred fifty-seven million, eight hundred one thousand, two hundred twenty".