677757777660 has 36 divisors (see below), whose sum is σ = 2055865259448. Its totient is φ = 180735407328.

The previous prime is 677757777629. The next prime is 677757777713. The reversal of 677757777660 is 66777757776.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 1882660314 + ... + 1882660673.

It is an arithmetic number, because the mean of its divisors is an integer number (57107368318).

Almost surely, 2^677757777660 is an apocalyptic number.

677757777660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677757777660 is an abundant number, since it is smaller than the sum of its proper divisors (1378107481788).

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

677757777660 is a wasteful number, since it uses less digits than its factorization.

677757777660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765321002 (or 3765320997 counting only the distinct ones).

The product of its (nonzero) digits is 889426440, while the sum is 72.

The spelling of 677757777660 in words is "six hundred seventy-seven billion, seven hundred fifty-seven million, seven hundred seventy-seven thousand, six hundred sixty".