12182861349 has 16 divisors (see below), whose sum is σ = 18052147200. Its totient is φ = 8120348928.

The previous prime is 12182861347. The next prime is 12182861359. The reversal of 12182861349 is 94316828121.

12182861349 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 28 + 613 + 4 + 9 = 666.

It is not a de Polignac number, because 12182861349 - 2¹ = 12182861347 is a prime.

It is a super-2 number, since 2×12182861349² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12182861347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109852 + ... + 190874.

It is an arithmetic number, because the mean of its divisors is an integer number (1128259200).

Almost surely, 2^12182861349 is an apocalyptic number.

It is an amenable number.

12182861349 is a deficient number, since it is larger than the sum of its proper divisors (5869285851).

12182861349 is an equidigital number, since it uses as much as digits as its factorization.

12182861349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86601 (or 86595 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The spelling of 12182861349 in words is "twelve billion, one hundred eighty-two million, eight hundred sixty-one thousand, three hundred forty-nine".