9323847085561 has 2 divisors, whose sum is σ = 9323847085562. Its totient is φ = 9323847085560.

The previous prime is 9323847085547. The next prime is 9323847085583. The reversal of 9323847085561 is 1655807483239.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7889110267536 + 1434736818025 = 2808756^2 + 1197805^2 .

It is a cyclic number.

It is not a de Polignac number, because 9323847085561 - 2³⁵ = 9289487347193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9323847085561.

It is not a weakly prime, because it can be changed into another prime (9323847085961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4661923542780 + 4661923542781.

It is an arithmetic number, because the mean of its divisors is an integer number (4661923542781).

It is a 1-persistent number, because it is pandigital, but 2⋅9323847085561 = 18647694171122 is not.

Almost surely, 2^{9323847085561} is an apocalyptic number.

It is an amenable number.

9323847085561 is a deficient number, since it is larger than the sum of its proper divisors (1).

9323847085561 is an equidigital number, since it uses as much as digits as its factorization.

9323847085561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 9323847085561 in words is "nine trillion, three hundred twenty-three billion, eight hundred forty-seven million, eighty-five thousand, five hundred sixty-one".