676722406804 has 6 divisors (see below), whose sum is σ = 1184264211914. Its totient is φ = 338361203400.

The previous prime is 676722406781. The next prime is 676722406819. The reversal of 676722406804 is 408604227676.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 482371920900 + 194350485904 = 694530^2 + 440852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84590300847 + ... + 84590300854.

Almost surely, 2^676722406804 is an apocalyptic number.

It is an amenable number.

676722406804 is a deficient number, since it is larger than the sum of its proper divisors (507541805110).

676722406804 is a wasteful number, since it uses less digits than its factorization.

676722406804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169180601705 (or 169180601703 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 676722406804 in words is "six hundred seventy-six billion, seven hundred twenty-two million, four hundred six thousand, eight hundred four".