68700681 has 48 divisors (see below), whose sum is σ = 121205760. Its totient is φ = 36650880.

The previous prime is 68700679. The next prime is 68700727. The reversal of 68700681 is 18600786.

It is not a de Polignac number, because 68700681 - 2¹ = 68700679 is a prime.

It is a super-2 number, since 2×68700681² = 9439567139727522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68700641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56031 + ... + 57243.

It is an arithmetic number, because the mean of its divisors is an integer number (2525120).

Almost surely, 2^68700681 is an apocalyptic number.

It is an amenable number.

68700681 is a deficient number, since it is larger than the sum of its proper divisors (52505079).

68700681 is a wasteful number, since it uses less digits than its factorization.

68700681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 68700681 is about 8288.5873947254. The cubic root of 68700681 is about 409.5626528225.

The spelling of 68700681 in words is "sixty-eight million, seven hundred thousand, six hundred eighty-one".