2645472972797 has 2 divisors, whose sum is σ = 2645472972798. Its totient is φ = 2645472972796.

The previous prime is 2645472972781. The next prime is 2645472972809. The reversal of 2645472972797 is 7972792745462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2626438355641 + 19034617156 = 1620629^2 + 137966^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645472972797 - 2⁴ = 2645472972781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2645472972797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645472972697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322736486398 + 1322736486399.

It is an arithmetic number, because the mean of its divisors is an integer number (1322736486399).

Almost surely, 2^{2645472972797} is an apocalyptic number.

It is an amenable number.

2645472972797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645472972797 is an equidigital number, since it uses as much as digits as its factorization.

2645472972797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746807040, while the sum is 71.

The spelling of 2645472972797 in words is "two trillion, six hundred forty-five billion, four hundred seventy-two million, nine hundred seventy-two thousand, seven hundred ninety-seven".