68899479627 has 54 divisors (see below), whose sum is σ = 105734336596. Its totient is φ = 39875046640.

The previous prime is 68899479601. The next prime is 68899479631. The reversal of 68899479627 is 72697499886.

It is not a de Polignac number, because 68899479627 - 2¹² = 68899475531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68899479667) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 115023874 + ... + 115024472.

Almost surely, 2^68899479627 is an apocalyptic number.

68899479627 is a deficient number, since it is larger than the sum of its proper divisors (36834856969).

68899479627 is an equidigital number, since it uses as much as digits as its factorization.

68899479627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 636 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 75.

Multiplying 68899479627 by its sum of digits (75), we get a square (5167460972025 = 2273205²).

The spelling of 68899479627 in words is "sixty-eight billion, eight hundred ninety-nine million, four hundred seventy-nine thousand, six hundred twenty-seven".