680774895 has 64 divisors (see below), whose sum is σ = 1233423360. Its totient is φ = 356213376.

The previous prime is 680774851. The next prime is 680774917. The reversal of 680774895 is 598477086.

It is not a de Polignac number, because 680774895 - 2¹¹ = 680772847 is a prime.

It is a super-2 number, since 2×680774895² = 926908915324522050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2405424 + ... + 2405706.

It is an arithmetic number, because the mean of its divisors is an integer number (19272240).

Almost surely, 2^680774895 is an apocalyptic number.

680774895 is a deficient number, since it is larger than the sum of its proper divisors (552648465).

680774895 is a wasteful number, since it uses less digits than its factorization.

680774895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 680774895 is about 26091.6633237515. The cubic root of 680774895 is about 879.6998352126.

The spelling of 680774895 in words is "six hundred eighty million, seven hundred seventy-four thousand, eight hundred ninety-five".