681510475 has 12 divisors (see below), whose sum is σ = 859398120. Its totient is φ = 535966400.

The previous prime is 681510463. The next prime is 681510547. The reversal of 681510475 is 574015186.

It is not a de Polignac number, because 681510475 - 2⁹ = 681509963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229546 + ... + 232495.

It is an arithmetic number, because the mean of its divisors is an integer number (71616510).

Almost surely, 2^681510475 is an apocalyptic number.

681510475 is a deficient number, since it is larger than the sum of its proper divisors (177887645).

681510475 is a wasteful number, since it uses less digits than its factorization.

681510475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462110 (or 462105 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 681510475 is about 26105.7555914400. The cubic root of 681510475 is about 880.0165608970.

The spelling of 681510475 in words is "six hundred eighty-one million, five hundred ten thousand, four hundred seventy-five".