681475258 has 8 divisors (see below), whose sum is σ = 1023898752. Its totient is φ = 340175676.

The previous prime is 681475247. The next prime is 681475271. The reversal of 681475258 is 852574186.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 279460 + ... + 281887.

It is an arithmetic number, because the mean of its divisors is an integer number (127987344).

Almost surely, 2^681475258 is an apocalyptic number.

681475258 is a deficient number, since it is larger than the sum of its proper divisors (342423494).

681475258 is a wasteful number, since it uses less digits than its factorization.

681475258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561956.

The product of its digits is 537600, while the sum is 46.

The square root of 681475258 is about 26105.0810762962. The cubic root of 681475258 is about 880.0014023738.

The spelling of 681475258 in words is "six hundred eighty-one million, four hundred seventy-five thousand, two hundred fifty-eight".