91403000863 has 2 divisors, whose sum is σ = 91403000864. Its totient is φ = 91403000862.

The previous prime is 91403000851. The next prime is 91403000881. The reversal of 91403000863 is 36800030419.

It is a weak prime.

It is an emirp because it is prime and its reverse (36800030419) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91403000863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91403001863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45701500431 + 45701500432.

It is an arithmetic number, because the mean of its divisors is an integer number (45701500432).

Almost surely, 2^91403000863 is an apocalyptic number.

91403000863 is a deficient number, since it is larger than the sum of its proper divisors (1).

91403000863 is an equidigital number, since it uses as much as digits as its factorization.

91403000863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 91403000863 in words is "ninety-one billion, four hundred three million, eight hundred sixty-three", and thus it is an aban number.