68497568 has 12 divisors (see below), whose sum is σ = 134854650. Its totient is φ = 34248768.

The previous prime is 68497567. The next prime is 68497589. The reversal of 68497568 is 86579486.

It can be written as a sum of positive squares in only one way, i.e., 63170704 + 5326864 = 7948^2 + 2308^2 .

It is not an unprimeable number, because it can be changed into a prime (68497567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070243 + ... + 1070306.

Almost surely, 2^68497568 is an apocalyptic number.

It is an amenable number.

68497568 is a deficient number, since it is larger than the sum of its proper divisors (66357082).

68497568 is a wasteful number, since it uses less digits than its factorization.

68497568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140559 (or 2140551 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 68497568 is about 8276.3257548262. The cubic root of 68497568 is about 409.1586315239.

The spelling of 68497568 in words is "sixty-eight million, four hundred ninety-seven thousand, five hundred sixty-eight".