91005207463 has 2 divisors, whose sum is σ = 91005207464. Its totient is φ = 91005207462.

The previous prime is 91005207457. The next prime is 91005207481. The reversal of 91005207463 is 36470250019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91005207463 - 2³³ = 82415272871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91005207413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45502603731 + 45502603732.

It is an arithmetic number, because the mean of its divisors is an integer number (45502603732).

Almost surely, 2^91005207463 is an apocalyptic number.

91005207463 is a deficient number, since it is larger than the sum of its proper divisors (1).

91005207463 is an equidigital number, since it uses as much as digits as its factorization.

91005207463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 91005207463 in words is "ninety-one billion, five million, two hundred seven thousand, four hundred sixty-three".