89521742097629 has 2 divisors, whose sum is σ = 89521742097630. Its totient is φ = 89521742097628.

The previous prime is 89521742097587. The next prime is 89521742097631. The reversal of 89521742097629 is 92679024712598.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51575809456900 + 37945932640729 = 7181630^2 + 6160027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89521742097629 is a prime.

Together with 89521742097631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89521792097629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44760871048814 + 44760871048815.

It is an arithmetic number, because the mean of its divisors is an integer number (44760871048815).

Almost surely, 2^{89521742097629} is an apocalyptic number.

It is an amenable number.

89521742097629 is a deficient number, since it is larger than the sum of its proper divisors (1).

89521742097629 is an equidigital number, since it uses as much as digits as its factorization.

89521742097629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 274337280, while the sum is 71.

The spelling of 89521742097629 in words is "eighty-nine trillion, five hundred twenty-one billion, seven hundred forty-two million, ninety-seven thousand, six hundred twenty-nine".