91729215463 has 2 divisors, whose sum is σ = 91729215464. Its totient is φ = 91729215462.

The previous prime is 91729215443. The next prime is 91729215577. The reversal of 91729215463 is 36451292719.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91729215463 - 2³³ = 83139280871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91729215443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45864607731 + 45864607732.

It is an arithmetic number, because the mean of its divisors is an integer number (45864607732).

Almost surely, 2^91729215463 is an apocalyptic number.

91729215463 is a deficient number, since it is larger than the sum of its proper divisors (1).

91729215463 is an equidigital number, since it uses as much as digits as its factorization.

91729215463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The spelling of 91729215463 in words is "ninety-one billion, seven hundred twenty-nine million, two hundred fifteen thousand, four hundred sixty-three".