12586414181 has 4 divisors (see below), whose sum is σ = 13730633664. Its totient is φ = 11442194700.

The previous prime is 12586414157. The next prime is 12586414187. The reversal of 12586414181 is 18141468521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18141468521 = 11 ⋅1649224411.

It is a cyclic number.

It is not a de Polignac number, because 12586414181 - 2²⁶ = 12519305317 is a prime.

It is a super-2 number, since 2×12586414181² (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 (12586414187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572109725 + ... + 572109746.

It is an arithmetic number, because the mean of its divisors is an integer number (3432658416).

Almost surely, 2^12586414181 is an apocalyptic number.

12586414181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12586414181 is a deficient number, since it is larger than the sum of its proper divisors (1144219483).

12586414181 is a wasteful number, since it uses less digits than its factorization.

12586414181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144219482.

The product of its digits is 61440, while the sum is 41.

The spelling of 12586414181 in words is "twelve billion, five hundred eighty-six million, four hundred fourteen thousand, one hundred eighty-one".