91462090309 has 2 divisors, whose sum is σ = 91462090310. Its totient is φ = 91462090308.

The previous prime is 91462090289. The next prime is 91462090333. The reversal of 91462090309 is 90309026419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67121410084 + 24340680225 = 259078^2 + 156015^2 .

It is an emirp because it is prime and its reverse (90309026419) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91462090309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91462091309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45731045154 + 45731045155.

It is an arithmetic number, because the mean of its divisors is an integer number (45731045155).

Almost surely, 2^91462090309 is an apocalyptic number.

It is an amenable number.

91462090309 is a deficient number, since it is larger than the sum of its proper divisors (1).

91462090309 is an equidigital number, since it uses as much as digits as its factorization.

91462090309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 91462090309 in words is "ninety-one billion, four hundred sixty-two million, ninety thousand, three hundred nine".