89208663699613 has 2 divisors, whose sum is σ = 89208663699614. Its totient is φ = 89208663699612.

The previous prime is 89208663699557. The next prime is 89208663699647. The reversal of 89208663699613 is 31699636680298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55279180390009 + 33929483309604 = 7434997^2 + 5824902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89208663699613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89208663699613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89208663699913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44604331849806 + 44604331849807.

It is an arithmetic number, because the mean of its divisors is an integer number (44604331849807).

Almost surely, 2^{89208663699613} is an apocalyptic number.

It is an amenable number.

89208663699613 is a deficient number, since it is larger than the sum of its proper divisors (1).

89208663699613 is an equidigital number, since it uses as much as digits as its factorization.

89208663699613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088391168, while the sum is 76.

The spelling of 89208663699613 in words is "eighty-nine trillion, two hundred eight billion, six hundred sixty-three million, six hundred ninety-nine thousand, six hundred thirteen".