681926315 has 16 divisors (see below), whose sum is σ = 935647680. Its totient is φ = 467389440.

The previous prime is 681926299. The next prime is 681926327. The reversal of 681926315 is 513629186.

It is not a de Polignac number, because 681926315 - 2⁴ = 681926299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120755 + ... + 126275.

It is an arithmetic number, because the mean of its divisors is an integer number (58477980).

Almost surely, 2^681926315 is an apocalyptic number.

681926315 is a deficient number, since it is larger than the sum of its proper divisors (253721365).

681926315 is a wasteful number, since it uses less digits than its factorization.

681926315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062.

The product of its digits is 77760, while the sum is 41.

The square root of 681926315 is about 26113.7189040550. The cubic root of 681926315 is about 880.1955122583.

The spelling of 681926315 in words is "six hundred eighty-one million, nine hundred twenty-six thousand, three hundred fifteen".