676673657780 has 24 divisors (see below), whose sum is σ = 1421152637352. Its totient is φ = 270643185792.

The previous prime is 676673657771. The next prime is 676673657813. The reversal of 676673657780 is 87756376676.

It can be written as a sum of positive squares in 4 ways, for example, as 60505176484 + 616168481296 = 245978^2 + 784964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 676673657780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430507 + ... + 1843826.

It is an arithmetic number, because the mean of its divisors is an integer number (59214693223).

Almost surely, 2^676673657780 is an apocalyptic number.

It is an amenable number.

676673657780 is an abundant number, since it is smaller than the sum of its proper divisors (744478979572).

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

676673657780 is a wasteful number, since it uses less digits than its factorization.

676673657780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284675 (or 3284673 counting only the distinct ones).

The product of its (nonzero) digits is 373403520, while the sum is 68.

The spelling of 676673657780 in words is "six hundred seventy-six billion, six hundred seventy-three million, six hundred fifty-seven thousand, seven hundred eighty".