91016435863 has 2 divisors, whose sum is σ = 91016435864. Its totient is φ = 91016435862.

The previous prime is 91016435849. The next prime is 91016435899. The reversal of 91016435863 is 36853461019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91016435863 - 2⁹ = 91016435351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91016435063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45508217931 + 45508217932.

It is an arithmetic number, because the mean of its divisors is an integer number (45508217932).

Almost surely, 2^91016435863 is an apocalyptic number.

91016435863 is a deficient number, since it is larger than the sum of its proper divisors (1).

91016435863 is an equidigital number, since it uses as much as digits as its factorization.

91016435863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 91016435863 in words is "ninety-one billion, sixteen million, four hundred thirty-five thousand, eight hundred sixty-three".