68915172751 has 8 divisors (see below), whose sum is σ = 69744510000. Its totient is φ = 68090430720.

The previous prime is 68915172749. The next prime is 68915172779. The reversal of 68915172751 is 15727151986.

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

It is a cyclic number.

It is not a de Polignac number, because 68915172751 - 2¹ = 68915172749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68915172551) 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, 1118626 + ... + 1178623.

It is an arithmetic number, because the mean of its divisors is an integer number (8718063750).

Almost surely, 2^68915172751 is an apocalyptic number.

68915172751 is a deficient number, since it is larger than the sum of its proper divisors (829337249).

68915172751 is a wasteful number, since it uses less digits than its factorization.

68915172751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297609.

The product of its digits is 1058400, while the sum is 52.

The spelling of 68915172751 in words is "sixty-eight billion, nine hundred fifteen million, one hundred seventy-two thousand, seven hundred fifty-one".