677427025560 has 128 divisors (see below), whose sum is σ = 2076890112000. Its totient is φ = 176723928576.

The previous prime is 677427025489. The next prime is 677427025589. The reversal of 677427025560 is 65520724776.

It is a happy number.

677427025560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705529 + ... + 1361111.

It is an arithmetic number, because the mean of its divisors is an integer number (16225704000).

Almost surely, 2^677427025560 is an apocalyptic number.

677427025560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677427025560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038445056000).

677427025560 is an abundant number, since it is smaller than the sum of its proper divisors (1399463086440).

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

677427025560 is a wasteful number, since it uses less digits than its factorization.

677427025560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655785 (or 655781 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 51.

The spelling of 677427025560 in words is "six hundred seventy-seven billion, four hundred twenty-seven million, twenty-five thousand, five hundred sixty".