377991680 has 160 divisors (see below), whose sum is σ = 1022934528. Its totient is φ = 132710400.

The previous prime is 377991673. The next prime is 377991697. The reversal of 377991680 is 86199773.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872744 + ... + 873176.

Almost surely, 2^377991680 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 377991680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511467264).

377991680 is an abundant number, since it is smaller than the sum of its proper divisors (644942848).

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

377991680 is a wasteful number, since it uses less digits than its factorization.

377991680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 377991680 is about 19442.0081267342. The cubic root of 377991680 is about 723.0373743503.

It can be divided in two parts, 3779 and 91680, that added together give a palindrome (95459).

The spelling of 377991680 in words is "three hundred seventy-seven million, nine hundred ninety-one thousand, six hundred eighty".