68806764075 has 54 divisors (see below), whose sum is σ = 132364252476. Its totient is φ = 31447251360.

The previous prime is 68806764071. The next prime is 68806764127. The reversal of 68806764075 is 57046760886.

It is not a de Polignac number, because 68806764075 - 2² = 68806764071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68806764071) 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, 15899562 + ... + 15903888.

Almost surely, 2^68806764075 is an apocalyptic number.

68806764075 is a deficient number, since it is larger than the sum of its proper divisors (63557488401).

68806764075 is an frugal number, since it uses more digits than its factorization.

68806764075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8681 (or 4342 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 68806764075 in words is "sixty-eight billion, eight hundred six million, seven hundred sixty-four thousand, seventy-five".