677619679860 has 60 divisors (see below), whose sum is σ = 2125718037828. Its totient is φ = 180698580864.

The previous prime is 677619679817. The next prime is 677619679861. The reversal of 677619679860 is 68976916776.

677619679860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 81160032996 + 596459646864 = 284886^2 + 772308^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677619679861) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 209140257 + ... + 209143496.

Almost surely, 2^677619679860 is an apocalyptic number.

677619679860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677619679860 is an abundant number, since it is smaller than the sum of its proper divisors (1448098357968).

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

677619679860 is a wasteful number, since it uses less digits than its factorization.

677619679860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418283774 (or 418283763 counting only the distinct ones).

The product of its (nonzero) digits is 288054144, while the sum is 72.

The spelling of 677619679860 in words is "six hundred seventy-seven billion, six hundred nineteen million, six hundred seventy-nine thousand, eight hundred sixty".