9956364461 has 2 divisors, whose sum is σ = 9956364462. Its totient is φ = 9956364460.

The previous prime is 9956364443. The next prime is 9956364463. The reversal of 9956364461 is 1644636599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9539428900 + 416935561 = 97670^2 + 20419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9956364461 is a prime.

It is a Sophie Germain prime.

Together with 9956364463, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9956364463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4978182230 + 4978182231.

It is an arithmetic number, because the mean of its divisors is an integer number (4978182231).

Almost surely, 2^9956364461 is an apocalyptic number.

9956364461 is the 53336-th centered heptagonal number.

It is an amenable number.

9956364461 is a deficient number, since it is larger than the sum of its proper divisors (1).

9956364461 is an equidigital number, since it uses as much as digits as its factorization.

9956364461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 53.

The square root of 9956364461 is about 99781.5837767671. The cubic root of 9956364461 is about 2151.2964570150.

The spelling of 9956364461 in words is "nine billion, nine hundred fifty-six million, three hundred sixty-four thousand, four hundred sixty-one".