89917280111 has 2 divisors, whose sum is σ = 89917280112. Its totient is φ = 89917280110.

The previous prime is 89917280087. The next prime is 89917280129. The reversal of 89917280111 is 11108271998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89917280111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89917280711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44958640055 + 44958640056.

It is an arithmetic number, because the mean of its divisors is an integer number (44958640056).

Almost surely, 2^89917280111 is an apocalyptic number.

89917280111 is a deficient number, since it is larger than the sum of its proper divisors (1).

89917280111 is an equidigital number, since it uses as much as digits as its factorization.

89917280111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 47.

The spelling of 89917280111 in words is "eighty-nine billion, nine hundred seventeen million, two hundred eighty thousand, one hundred eleven".