677972521936 has 10 divisors (see below), whose sum is σ = 1313571761282. Its totient is φ = 338986260960.

The previous prime is 677972521883. The next prime is 677972521949. The reversal of 677972521936 is 639125279776.

It can be written as a sum of positive squares in only one way, i.e., 621164659600 + 56807862336 = 788140^2 + 238344^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21186641295 + ... + 21186641326.

Almost surely, 2^677972521936 is an apocalyptic number.

It is an amenable number.

677972521936 is a deficient number, since it is larger than the sum of its proper divisors (635599239346).

677972521936 is a wasteful number, since it uses less digits than its factorization.

677972521936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42373282629 (or 42373282623 counting only the distinct ones).

The product of its digits is 60011280, while the sum is 64.

The spelling of 677972521936 in words is "six hundred seventy-seven billion, nine hundred seventy-two million, five hundred twenty-one thousand, nine hundred thirty-six".