681458270 has 16 divisors (see below), whose sum is σ = 1227091248. Its totient is φ = 272479680.

The previous prime is 681458249. The next prime is 681458293. The reversal of 681458270 is 72854186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18242 + ... + 41178.

It is an arithmetic number, because the mean of its divisors is an integer number (76693203).

Almost surely, 2^681458270 is an apocalyptic number.

681458270 is a deficient number, since it is larger than the sum of its proper divisors (545632978).

681458270 is a wasteful number, since it uses less digits than its factorization.

681458270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25915.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 681458270 is about 26104.7556969990. The cubic root of 681458270 is about 879.9940900085.

The spelling of 681458270 in words is "six hundred eighty-one million, four hundred fifty-eight thousand, two hundred seventy".