972241815953 has 2 divisors, whose sum is σ = 972241815954. Its totient is φ = 972241815952.

The previous prime is 972241815917. The next prime is 972241816057. The reversal of 972241815953 is 359518142279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564447182209 + 407794633744 = 751297^2 + 638588^2 .

It is an emirp because it is prime and its reverse (359518142279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972241815953 - 2²⁶ = 972174707089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (972241818953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486120907976 + 486120907977.

It is an arithmetic number, because the mean of its divisors is an integer number (486120907977).

Almost surely, 2^972241815953 is an apocalyptic number.

It is an amenable number.

972241815953 is a deficient number, since it is larger than the sum of its proper divisors (1).

972241815953 is an equidigital number, since it uses as much as digits as its factorization.

972241815953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 56.

The spelling of 972241815953 in words is "nine hundred seventy-two billion, two hundred forty-one million, eight hundred fifteen thousand, nine hundred fifty-three".