680975451 has 32 divisors (see below), whose sum is σ = 1089536000. Its totient is φ = 417874464.

The previous prime is 680975441. The next prime is 680975453. The reversal of 680975451 is 154579086.

It is not a de Polignac number, because 680975451 - 2⁹ = 680974939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680975397 and 680975406.

It is not an unprimeable number, because it can be changed into a prime (680975453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130470 + ... + 135588.

It is an arithmetic number, because the mean of its divisors is an integer number (34048000).

Almost surely, 2^680975451 is an apocalyptic number.

680975451 is a deficient number, since it is larger than the sum of its proper divisors (408560549).

680975451 is a wasteful number, since it uses less digits than its factorization.

680975451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520 (or 5514 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 680975451 is about 26095.5063372988. The cubic root of 680975451 is about 879.7862131323.

The spelling of 680975451 in words is "six hundred eighty million, nine hundred seventy-five thousand, four hundred fifty-one".