12262185493 has 4 divisors (see below), whose sum is σ = 12983490540. Its totient is φ = 11540880448.

The previous prime is 12262185491. The next prime is 12262185497. The reversal of 12262185493 is 39458126221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39458126221 = 73 ⋅540522277.

It can be written as a sum of positive squares in 2 ways, for example, as 6399680004 + 5862505489 = 79998^2 + 76567^2 .

It is a cyclic number.

It is not a de Polignac number, because 12262185493 - 2¹ = 12262185491 is a prime.

It is a super-2 number, since 2×12262185493² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12262185491) 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, 360652498 + ... + 360652531.

It is an arithmetic number, because the mean of its divisors is an integer number (3245872635).

Almost surely, 2^12262185493 is an apocalyptic number.

It is an amenable number.

12262185493 is a deficient number, since it is larger than the sum of its proper divisors (721305047).

12262185493 is an equidigital number, since it uses as much as digits as its factorization.

12262185493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721305046.

The product of its digits is 207360, while the sum is 43.

The spelling of 12262185493 in words is "twelve billion, two hundred sixty-two million, one hundred eighty-five thousand, four hundred ninety-three".