172968297715 has 4 divisors (see below), whose sum is σ = 207561957264. Its totient is φ = 138374638168.

The previous prime is 172968297713. The next prime is 172968297721. The reversal of 172968297715 is 517792869271.

172968297715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172968297715 - 2¹ = 172968297713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172968297713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17296829767 + ... + 17296829776.

It is an arithmetic number, because the mean of its divisors is an integer number (51890489316).

Almost surely, 2^172968297715 is an apocalyptic number.

172968297715 is a deficient number, since it is larger than the sum of its proper divisors (34593659549).

172968297715 is an equidigital number, since it uses as much as digits as its factorization.

172968297715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34593659548.

The product of its digits is 26671680, while the sum is 64.

The spelling of 172968297715 in words is "one hundred seventy-two billion, nine hundred sixty-eight million, two hundred ninety-seven thousand, seven hundred fifteen".