68868375648 has 24 divisors (see below), whose sum is σ = 180779486328. Its totient is φ = 22956125184.

The previous prime is 68868375643. The next prime is 68868375659. The reversal of 68868375648 is 84657386886.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68868375643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358689361 + ... + 358689552.

It is an arithmetic number, because the mean of its divisors is an integer number (7532478597).

Almost surely, 2^68868375648 is an apocalyptic number.

It is an amenable number.

68868375648 is an abundant number, since it is smaller than the sum of its proper divisors (111911110680).

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

68868375648 is a wasteful number, since it uses less digits than its factorization.

68868375648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717378926 (or 717378918 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 69.

The spelling of 68868375648 in words is "sixty-eight billion, eight hundred sixty-eight million, three hundred seventy-five thousand, six hundred forty-eight".