9656731772953 has 2 divisors, whose sum is σ = 9656731772954. Its totient is φ = 9656731772952.

The previous prime is 9656731772951. The next prime is 9656731773077. The reversal of 9656731772953 is 3592771376569.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7516573439769 + 2140158333184 = 2741637^2 + 1462928^2 .

It is a cyclic number.

It is not a de Polignac number, because 9656731772953 - 2¹ = 9656731772951 is a prime.

Together with 9656731772951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9656731772951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4828365886476 + 4828365886477.

It is an arithmetic number, because the mean of its divisors is an integer number (4828365886477).

Almost surely, 2^{9656731772953} is an apocalyptic number.

It is an amenable number.

9656731772953 is a deficient number, since it is larger than the sum of its proper divisors (1).

9656731772953 is an equidigital number, since it uses as much as digits as its factorization.

9656731772953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450084600, while the sum is 70.

The spelling of 9656731772953 in words is "nine trillion, six hundred fifty-six billion, seven hundred thirty-one million, seven hundred seventy-two thousand, nine hundred fifty-three".