972815892179 has 2 divisors, whose sum is σ = 972815892180. Its totient is φ = 972815892178.

The previous prime is 972815892163. The next prime is 972815892187. The reversal of 972815892179 is 971298518279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 972815892179 - 2⁴ = 972815892163 is a prime.

It is not a weakly prime, because it can be changed into another prime (972865892179) 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 as a sum of consecutive naturals, namely, 486407946089 + 486407946090.

It is an arithmetic number, because the mean of its divisors is an integer number (486407946090).

Almost surely, 2^972815892179 is an apocalyptic number.

972815892179 is a deficient number, since it is larger than the sum of its proper divisors (1).

972815892179 is an equidigital number, since it uses as much as digits as its factorization.

972815892179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 68.

The spelling of 972815892179 in words is "nine hundred seventy-two billion, eight hundred fifteen million, eight hundred ninety-two thousand, one hundred seventy-nine".