91669359259 has 2 divisors, whose sum is σ = 91669359260. Its totient is φ = 91669359258.

The previous prime is 91669359247. The next prime is 91669359269. The reversal of 91669359259 is 95295396619.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91669359259 - 2⁹ = 91669358747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91669359259.

It is not a weakly prime, because it can be changed into another prime (91669359269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45834679629 + 45834679630.

It is an arithmetic number, because the mean of its divisors is an integer number (45834679630).

Almost surely, 2^91669359259 is an apocalyptic number.

91669359259 is a deficient number, since it is larger than the sum of its proper divisors (1).

91669359259 is an equidigital number, since it uses as much as digits as its factorization.

91669359259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35429400, while the sum is 64.

The spelling of 91669359259 in words is "ninety-one billion, six hundred sixty-nine million, three hundred fifty-nine thousand, two hundred fifty-nine".