681011464 has 32 divisors (see below), whose sum is σ = 1463267520. Its totient is φ = 291070656.

The previous prime is 681011459. The next prime is 681011473. The reversal of 681011464 is 464110186.

It is a super-2 number, since 2×681011464² = 927553228198846592, which contains 22 as substring.

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, 4587 + ... + 37189.

It is an arithmetic number, because the mean of its divisors is an integer number (45727110).

Almost surely, 2^681011464 is an apocalyptic number.

It is an amenable number.

681011464 is an abundant number, since it is smaller than the sum of its proper divisors (782256056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681011464 is a wasteful number, since it uses less digits than its factorization.

681011464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32989 (or 32985 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 681011464 is about 26096.1963511926. The cubic root of 681011464 is about 879.8017218570.

The spelling of 681011464 in words is "six hundred eighty-one million, eleven thousand, four hundred sixty-four".