91886336111 has 2 divisors, whose sum is σ = 91886336112. Its totient is φ = 91886336110.

The previous prime is 91886336083. The next prime is 91886336137. The reversal of 91886336111 is 11163368819.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91886336111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91886336161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45943168055 + 45943168056.

It is an arithmetic number, because the mean of its divisors is an integer number (45943168056).

Almost surely, 2^91886336111 is an apocalyptic number.

91886336111 is a deficient number, since it is larger than the sum of its proper divisors (1).

91886336111 is an equidigital number, since it uses as much as digits as its factorization.

91886336111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 47.

The spelling of 91886336111 in words is "ninety-one billion, eight hundred eighty-six million, three hundred thirty-six thousand, one hundred eleven".