677198880 has 120 divisors (see below), whose sum is σ = 2389993452. Its totient is φ = 180582912.

The previous prime is 677198849. The next prime is 677198897. The reversal of 677198880 is 88891776.

It can be written as a sum of positive squares in 2 ways, for example, as 658846224 + 18352656 = 25668^2 + 4284^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13167 + ... + 39086.

Almost surely, 2^677198880 is an apocalyptic number.

677198880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677198880 is an abundant number, since it is smaller than the sum of its proper divisors (1712794572).

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

677198880 is a wasteful number, since it uses less digits than its factorization.

677198880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52280 (or 52263 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 677198880 is about 26023.0451715398. The cubic root of 677198880 is about 878.1568170317.

The spelling of 677198880 in words is "six hundred seventy-seven million, one hundred ninety-eight thousand, eight hundred eighty".