12291082386497 has 12 divisors (see below), whose sum is σ = 12502350523260. Its totient is φ = 12083327847360.

The previous prime is 12291082386493. The next prime is 12291082386511. The reversal of 12291082386497 is 79468328019221.

It is a Cunningham number, because it is equal to 3505864²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 681498129841 + 11609584256656 = 825529^2 + 3407284^2 .

It is not a de Polignac number, because 12291082386497 - 2² = 12291082386493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12291082386493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6338279 + ... + 8047107.

It is an arithmetic number, because the mean of its divisors is an integer number (1041862543605).

Almost surely, 2^{12291082386497} is an apocalyptic number.

It is an amenable number.

12291082386497 is a deficient number, since it is larger than the sum of its proper divisors (211268136763).

12291082386497 is an equidigital number, since it uses as much as digits as its factorization.

12291082386497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710884 (or 1710823 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 12291082386497 in words is "twelve trillion, two hundred ninety-one billion, eighty-two million, three hundred eighty-six thousand, four hundred ninety-seven".