972241816057 has 2 divisors, whose sum is σ = 972241816058. Its totient is φ = 972241816056.

The previous prime is 972241815953. The next prime is 972241816097. The reversal of 972241816057 is 750618142279.

972241816057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558971550736 + 413270265321 = 747644^2 + 642861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972241816057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 972241815995 and 972241816013.

It is not a weakly prime, because it can be changed into another prime (972241816097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486120908028 + 486120908029.

It is an arithmetic number, because the mean of its divisors is an integer number (486120908029).

Almost surely, 2^972241816057 is an apocalyptic number.

It is an amenable number.

972241816057 is a deficient number, since it is larger than the sum of its proper divisors (1).

972241816057 is an equidigital number, since it uses as much as digits as its factorization.

972241816057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 972241816057 in words is "nine hundred seventy-two billion, two hundred forty-one million, eight hundred sixteen thousand, fifty-seven".