68505919071 has 8 divisors (see below), whose sum is σ = 91489268784. Its totient is φ = 45596591040.

The previous prime is 68505919061. The next prime is 68505919073. The reversal of 68505919071 is 17091950586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68505919071 - 2⁶ = 68505919007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68505919073) 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, 18503260 + ... + 18506961.

It is an arithmetic number, because the mean of its divisors is an integer number (11436158598).

Almost surely, 2^68505919071 is an apocalyptic number.

68505919071 is a deficient number, since it is larger than the sum of its proper divisors (22983349713).

68505919071 is a wasteful number, since it uses less digits than its factorization.

68505919071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37010841.

The product of its (nonzero) digits is 680400, while the sum is 51.

The spelling of 68505919071 in words is "sixty-eight billion, five hundred five million, nine hundred nineteen thousand, seventy-one".