9564799475401 has 3 divisors (see below), whose sum is σ = 9564802568103. Its totient is φ = 9564796382700.

The previous prime is 9564799475389. The next prime is 9564799475417. The reversal of 9564799475401 is 1045749974659.

The square root of 9564799475401 is 3092701.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 780570483001 + 8784228992400 = 883499^2 + 2963820^2 .

It is not a de Polignac number, because 9564799475401 - 2³³ = 9556209540809 is a prime.

It is a super-2 number, since 2×9564799475401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9564799479401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1546351 + ... + 4639051.

It is an arithmetic number, because the mean of its divisors is an integer number (3188267522701).

Almost surely, 2^{9564799475401} is an apocalyptic number.

9564799475401 is the 3092701-st square number.

9564799475401 is the 1546351-st centered octagonal number.

It is an amenable number.

9564799475401 is a deficient number, since it is larger than the sum of its proper divisors (3092702).

9564799475401 is an frugal number, since it uses more digits than its factorization.

9564799475401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185402 (or 3092701 counting only the distinct ones).

The product of its (nonzero) digits is 342921600, while the sum is 70.

The spelling of 9564799475401 in words is "nine trillion, five hundred sixty-four billion, seven hundred ninety-nine million, four hundred seventy-five thousand, four hundred one".