89593665677 has 2 divisors, whose sum is σ = 89593665678. Its totient is φ = 89593665676.

The previous prime is 89593665661. The next prime is 89593665739. The reversal of 89593665677 is 77656639598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85742966761 + 3850698916 = 292819^2 + 62054^2 .

It is a cyclic number.

It is not a de Polignac number, because 89593665677 - 2⁴ = 89593665661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89593665677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89593665877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44796832838 + 44796832839.

It is an arithmetic number, because the mean of its divisors is an integer number (44796832839).

Almost surely, 2^89593665677 is an apocalyptic number.

It is an amenable number.

89593665677 is a deficient number, since it is larger than the sum of its proper divisors (1).

89593665677 is an equidigital number, since it uses as much as digits as its factorization.

89593665677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 514382400, while the sum is 71.

The spelling of 89593665677 in words is "eighty-nine billion, five hundred ninety-three million, six hundred sixty-five thousand, six hundred seventy-seven".