8100942596521 has 2 divisors, whose sum is σ = 8100942596522. Its totient is φ = 8100942596520.

The previous prime is 8100942596501. The next prime is 8100942596563. The reversal of 8100942596521 is 1256952490018.

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., 8086407882921 + 14534713600 = 2843661^2 + 120560^2 .

It is a cyclic number.

It is not a de Polignac number, because 8100942596521 - 2²³ = 8100934207913 is a prime.

It is not a weakly prime, because it can be changed into another prime (8100942596501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4050471298260 + 4050471298261.

It is an arithmetic number, because the mean of its divisors is an integer number (4050471298261).

Almost surely, 2^{8100942596521} is an apocalyptic number.

It is an amenable number.

8100942596521 is a deficient number, since it is larger than the sum of its proper divisors (1).

8100942596521 is an equidigital number, since it uses as much as digits as its factorization.

8100942596521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 8100942596521 in words is "eight trillion, one hundred billion, nine hundred forty-two million, five hundred ninety-six thousand, five hundred twenty-one".