91464383999 has 2 divisors, whose sum is σ = 91464384000. Its totient is φ = 91464383998.

The previous prime is 91464383963. The next prime is 91464384007. The reversal of 91464383999 is 99938346419.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91464383999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91464383099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45732191999 + 45732192000.

It is an arithmetic number, because the mean of its divisors is an integer number (45732192000).

Almost surely, 2^91464383999 is an apocalyptic number.

91464383999 is a deficient number, since it is larger than the sum of its proper divisors (1).

91464383999 is an equidigital number, since it uses as much as digits as its factorization.

91464383999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45349632, while the sum is 65.

The spelling of 91464383999 in words is "ninety-one billion, four hundred sixty-four million, three hundred eighty-three thousand, nine hundred ninety-nine".