12089091247 has 2 divisors, whose sum is σ = 12089091248. Its totient is φ = 12089091246.

The previous prime is 12089091241. The next prime is 12089091263. The reversal of 12089091247 is 74219098021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12089091247 - 2³ = 12089091239 is a prime.

It is a super-2 number, since 2×12089091247² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12089091241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6044545623 + 6044545624.

It is an arithmetic number, because the mean of its divisors is an integer number (6044545624).

Almost surely, 2^12089091247 is an apocalyptic number.

12089091247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12089091247 is an equidigital number, since it uses as much as digits as its factorization.

12089091247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 12089091247 in words is "twelve billion, eighty-nine million, ninety-one thousand, two hundred forty-seven".