68523516834 has 16 divisors (see below), whose sum is σ = 144260035680. Its totient is φ = 21639005280.

The previous prime is 68523516791. The next prime is 68523516881. The reversal of 68523516834 is 43861532586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300541627 + ... + 300541854.

It is an arithmetic number, because the mean of its divisors is an integer number (9016252230).

Almost surely, 2^68523516834 is an apocalyptic number.

68523516834 is an abundant number, since it is smaller than the sum of its proper divisors (75736518846).

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

68523516834 is a wasteful number, since it uses less digits than its factorization.

68523516834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601083505.

The product of its digits is 4147200, while the sum is 51.

The spelling of 68523516834 in words is "sixty-eight billion, five hundred twenty-three million, five hundred sixteen thousand, eight hundred thirty-four".