7522331746561 has 2 divisors, whose sum is σ = 7522331746562. Its totient is φ = 7522331746560.

The previous prime is 7522331746543. The next prime is 7522331746571. The reversal of 7522331746561 is 1656471332257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6615492643600 + 906839102961 = 2572060^2 + 952281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7522331746561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7522331746499 and 7522331746508.

It is not a weakly prime, because it can be changed into another prime (7522331746511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3761165873280 + 3761165873281.

It is an arithmetic number, because the mean of its divisors is an integer number (3761165873281).

Almost surely, 2^{7522331746561} is an apocalyptic number.

It is an amenable number.

7522331746561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7522331746561 is an equidigital number, since it uses as much as digits as its factorization.

7522331746561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 52.

The spelling of 7522331746561 in words is "seven trillion, five hundred twenty-two billion, three hundred thirty-one million, seven hundred forty-six thousand, five hundred sixty-one".