972564479993 has 2 divisors, whose sum is σ = 972564479994. Its totient is φ = 972564479992.

The previous prime is 972564479983. The next prime is 972564480007. The reversal of 972564479993 is 399974465279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 596560051129 + 376004428864 = 772373^2 + 613192^2 .

It is an emirp because it is prime and its reverse (399974465279) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972564479993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 972564479993.

It is not a weakly prime, because it can be changed into another prime (972564479963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486282239996 + 486282239997.

It is an arithmetic number, because the mean of its divisors is an integer number (486282239997).

Almost surely, 2^972564479993 is an apocalyptic number.

It is an amenable number.

972564479993 is a deficient number, since it is larger than the sum of its proper divisors (1).

972564479993 is an equidigital number, since it uses as much as digits as its factorization.

972564479993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 925888320, while the sum is 74.

The spelling of 972564479993 in words is "nine hundred seventy-two billion, five hundred sixty-four million, four hundred seventy-nine thousand, nine hundred ninety-three".