377668818 has 40 divisors (see below), whose sum is σ = 851917440. Its totient is φ = 125047800.

The previous prime is 377668817. The next prime is 377668843. The reversal of 377668818 is 818866773.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (377668817) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16743 + ... + 32181.

It is an arithmetic number, because the mean of its divisors is an integer number (21297936).

Almost surely, 2^377668818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 377668818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425958720).

377668818 is an abundant number, since it is smaller than the sum of its proper divisors (474248622).

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

377668818 is a wasteful number, since it uses less digits than its factorization.

377668818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15604 (or 15595 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 377668818 is about 19433.7031468529. The cubic root of 377668818 is about 722.8314546600.

The spelling of 377668818 in words is "three hundred seventy-seven million, six hundred sixty-eight thousand, eight hundred eighteen".