677050651720 has 64 divisors (see below), whose sum is σ = 1534935089520. Its totient is φ = 268764340224.

The previous prime is 677050651709. The next prime is 677050651729. The reversal of 677050651720 is 27156050776.

It can be written as a sum of positive squares in 8 ways, for example, as 37015451236 + 640035200484 = 192394^2 + 800022^2 .

It is not an unprimeable number, because it can be changed into a prime (677050651729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20769354 + ... + 20801926.

Almost surely, 2^677050651720 is an apocalyptic number.

It is an amenable number.

677050651720 is an abundant number, since it is smaller than the sum of its proper divisors (857884437800).

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

677050651720 is a wasteful number, since it uses less digits than its factorization.

677050651720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36514 (or 36510 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 677050651720 in words is "six hundred seventy-seven billion, fifty million, six hundred fifty-one thousand, seven hundred twenty".