91114512799 has 2 divisors, whose sum is σ = 91114512800. Its totient is φ = 91114512798.

The previous prime is 91114512739. The next prime is 91114512829. The reversal of 91114512799 is 99721541119.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91114512799 - 2²³ = 91106124191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91114512739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45557256399 + 45557256400.

It is an arithmetic number, because the mean of its divisors is an integer number (45557256400).

Almost surely, 2^91114512799 is an apocalyptic number.

91114512799 is a deficient number, since it is larger than the sum of its proper divisors (1).

91114512799 is an equidigital number, since it uses as much as digits as its factorization.

91114512799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 49.

The spelling of 91114512799 in words is "ninety-one billion, one hundred fourteen million, five hundred twelve thousand, seven hundred ninety-nine".