677970991080 has 48 divisors (see below), whose sum is σ = 2203405722180. Its totient is φ = 180792264192.

The previous prime is 677970991069. The next prime is 677970991091. The reversal of 677970991080 is 80199079776.

It is an interprime number because it is at equal distance from previous prime (677970991069) and next prime (677970991091).

It can be written as a sum of positive squares in 2 ways, for example, as 615223747044 + 62747244036 = 784362^2 + 250494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 677970990999 and 677970991017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 941626017 + ... + 941626736.

Almost surely, 2^677970991080 is an apocalyptic number.

677970991080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677970991080 is an abundant number, since it is smaller than the sum of its proper divisors (1525434731100).

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

677970991080 is a wasteful number, since it uses less digits than its factorization.

677970991080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883252770 (or 1883252763 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 63.

The spelling of 677970991080 in words is "six hundred seventy-seven billion, nine hundred seventy million, nine hundred ninety-one thousand, eighty".