681358262 has 16 divisors (see below), whose sum is σ = 1108579920. Its totient is φ = 312208992.

The previous prime is 681358261. The next prime is 681358273. The reversal of 681358262 is 262853186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681358261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90653 + ... + 97880.

It is an arithmetic number, because the mean of its divisors is an integer number (69286245).

Almost surely, 2^681358262 is an apocalyptic number.

681358262 is a deficient number, since it is larger than the sum of its proper divisors (427221658).

681358262 is a wasteful number, since it uses less digits than its factorization.

681358262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188687.

The product of its digits is 138240, while the sum is 41.

The square root of 681358262 is about 26102.8401136735. The cubic root of 681358262 is about 879.9510398036.

The spelling of 681358262 in words is "six hundred eighty-one million, three hundred fifty-eight thousand, two hundred sixty-two".