68512488 has 32 divisors (see below), whose sum is σ = 186852960. Its totient is φ = 20761280.

The previous prime is 68512487. The next prime is 68512501. The reversal of 68512488 is 88421586.

It is a super-2 number, since 2×68512488² = 9387922023900288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68512481) 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, 129495 + ... + 130022.

It is an arithmetic number, because the mean of its divisors is an integer number (5839155).

Almost surely, 2^68512488 is an apocalyptic number.

It is an amenable number.

68512488 is an abundant number, since it is smaller than the sum of its proper divisors (118340472).

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

68512488 is a wasteful number, since it uses less digits than its factorization.

68512488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259537 (or 259533 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 68512488 is about 8277.2270719124. The cubic root of 68512488 is about 409.1883367323.

It can be divided in two parts, 6851 and 2488, that added together give a palindrome (9339).

The spelling of 68512488 in words is "sixty-eight million, five hundred twelve thousand, four hundred eighty-eight".