91102571459 has 2 divisors, whose sum is σ = 91102571460. Its totient is φ = 91102571458.

The previous prime is 91102571381. The next prime is 91102571501. The reversal of 91102571459 is 95417520119.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91102571459 is a prime.

It is not a weakly prime, because it can be changed into another prime (91102577459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45551285729 + 45551285730.

It is an arithmetic number, because the mean of its divisors is an integer number (45551285730).

Almost surely, 2^91102571459 is an apocalyptic number.

91102571459 is a deficient number, since it is larger than the sum of its proper divisors (1).

91102571459 is an equidigital number, since it uses as much as digits as its factorization.

91102571459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 44.

The spelling of 91102571459 in words is "ninety-one billion, one hundred two million, five hundred seventy-one thousand, four hundred fifty-nine".