9564799479401 has 2 divisors, whose sum is σ = 9564799479402. Its totient is φ = 9564799479400.

The previous prime is 9564799479247. The next prime is 9564799479451. The reversal of 9564799479401 is 1049749974659.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8764175389225 + 800624090176 = 2960435^2 + 894776^2 .

It is an emirp because it is prime and its reverse (1049749974659) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9564799479401 - 2³⁸ = 9289921572457 is a prime.

It is a super-2 number, since 2×9564799479401² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9564799479451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4782399739700 + 4782399739701.

It is an arithmetic number, because the mean of its divisors is an integer number (4782399739701).

Almost surely, 2^{9564799479401} is an apocalyptic number.

It is an amenable number.

9564799479401 is a deficient number, since it is larger than the sum of its proper divisors (1).

9564799479401 is an equidigital number, since it uses as much as digits as its factorization.

9564799479401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617258880, while the sum is 74.

The spelling of 9564799479401 in words is "nine trillion, five hundred sixty-four billion, seven hundred ninety-nine million, four hundred seventy-nine thousand, four hundred one".