68318817292 has 24 divisors (see below), whose sum is σ = 130438167552. Its totient is φ = 31051309200.

The previous prime is 68318817289. The next prime is 68318817293. The reversal of 68318817292 is 29271881386.

68318817292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (68318817293) 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, 497817 + ... + 620047.

It is an arithmetic number, because the mean of its divisors is an integer number (5434923648).

Almost surely, 2^68318817292 is an apocalyptic number.

It is an amenable number.

68318817292 is a deficient number, since it is larger than the sum of its proper divisors (62119350260).

68318817292 is a wasteful number, since it uses less digits than its factorization.

68318817292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134949 (or 134947 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 68318817292 in words is "sixty-eight billion, three hundred eighteen million, eight hundred seventeen thousand, two hundred ninety-two".