9722555896523 has 2 divisors, whose sum is σ = 9722555896524. Its totient is φ = 9722555896522.

The previous prime is 9722555896513. The next prime is 9722555896577. The reversal of 9722555896523 is 3256985552279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9722555896523 - 2¹⁰ = 9722555895499 is a prime.

It is a super-2 number, since 2×9722555896523² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9722555896513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4861277948261 + 4861277948262.

It is an arithmetic number, because the mean of its divisors is an integer number (4861277948262).

Almost surely, 2^{9722555896523} is an apocalyptic number.

9722555896523 is a deficient number, since it is larger than the sum of its proper divisors (1).

9722555896523 is an equidigital number, since it uses as much as digits as its factorization.

9722555896523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240000, while the sum is 68.

The spelling of 9722555896523 in words is "nine trillion, seven hundred twenty-two billion, five hundred fifty-five million, eight hundred ninety-six thousand, five hundred twenty-three".