677883131520 has 128 divisors (see below), whose sum is σ = 2469431456640. Its totient is φ = 154944712704.

The previous prime is 677883131509. The next prime is 677883131551. The reversal of 677883131520 is 25131388776.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25205427 + ... + 25232306.

It is an arithmetic number, because the mean of its divisors is an integer number (19292433255).

Almost surely, 2^677883131520 is an apocalyptic number.

677883131520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677883131520 is an abundant number, since it is smaller than the sum of its proper divisors (1791548325120).

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

677883131520 is a wasteful number, since it uses less digits than its factorization.

677883131520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50437762 (or 50437750 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 677883131520 in words is "six hundred seventy-seven billion, eight hundred eighty-three million, one hundred thirty-one thousand, five hundred twenty".