89208663699557 has 2 divisors, whose sum is σ = 89208663699558. Its totient is φ = 89208663699556.

The previous prime is 89208663699541. The next prime is 89208663699613. The reversal of 89208663699557 is 75599636680298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61620474716641 + 27588188982916 = 7849871^2 + 5252446^2 .

It is a cyclic number.

It is not a de Polignac number, because 89208663699557 - 2⁴ = 89208663699541 is a prime.

It is a super-3 number, since 3×89208663699557³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89208663699457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44604331849778 + 44604331849779.

It is an arithmetic number, because the mean of its divisors is an integer number (44604331849779).

Almost surely, 2^{89208663699557} is an apocalyptic number.

It is an amenable number.

89208663699557 is a deficient number, since it is larger than the sum of its proper divisors (1).

89208663699557 is an equidigital number, since it uses as much as digits as its factorization.

89208663699557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10581580800, while the sum is 83.

The spelling of 89208663699557 in words is "eighty-nine trillion, two hundred eight billion, six hundred sixty-three million, six hundred ninety-nine thousand, five hundred fifty-seven".