89188557071 has 2 divisors, whose sum is σ = 89188557072. Its totient is φ = 89188557070.

The previous prime is 89188557067. The next prime is 89188557097. The reversal of 89188557071 is 17075588198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89188557071 - 2² = 89188557067 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89188557071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89188557041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44594278535 + 44594278536.

It is an arithmetic number, because the mean of its divisors is an integer number (44594278536).

Almost surely, 2^89188557071 is an apocalyptic number.

89188557071 is a deficient number, since it is larger than the sum of its proper divisors (1).

89188557071 is an equidigital number, since it uses as much as digits as its factorization.

89188557071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 59.

The spelling of 89188557071 in words is "eighty-nine billion, one hundred eighty-eight million, five hundred fifty-seven thousand, seventy-one".