12008790491 has 2 divisors, whose sum is σ = 12008790492. Its totient is φ = 12008790490.

The previous prime is 12008790473. The next prime is 12008790517. The reversal of 12008790491 is 19409780021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12008790491 is a prime.

It is a super-2 number, since 2×12008790491² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12008790421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004395245 + 6004395246.

It is an arithmetic number, because the mean of its divisors is an integer number (6004395246).

Almost surely, 2^12008790491 is an apocalyptic number.

12008790491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008790491 is an equidigital number, since it uses as much as digits as its factorization.

12008790491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 12008790491 in words is "twelve billion, eight million, seven hundred ninety thousand, four hundred ninety-one".