68647028675 has 12 divisors (see below), whose sum is σ = 85128584160. Its totient is φ = 54913578720.

The previous prime is 68647028669. The next prime is 68647028707. The reversal of 68647028675 is 57682074686.

It is a happy number.

It is not a de Polignac number, because 68647028675 - 2¹⁰ = 68647027651 is a prime.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272189 + ... + 459761.

It is an arithmetic number, because the mean of its divisors is an integer number (7094048680).

Almost surely, 2^68647028675 is an apocalyptic number.

68647028675 is a deficient number, since it is larger than the sum of its proper divisors (16481555485).

68647028675 is a wasteful number, since it uses less digits than its factorization.

68647028675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202222 (or 202217 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 68647028675 in words is "sixty-eight billion, six hundred forty-seven million, twenty-eight thousand, six hundred seventy-five".