12135126227847 has 24 divisors (see below), whose sum is σ = 18994505785200. Its totient is φ = 6870739873536.

The previous prime is 12135126227831. The next prime is 12135126227891. The reversal of 12135126227847 is 74872262153121.

It is not a de Polignac number, because 12135126227847 - 2⁴ = 12135126227831 is a prime.

It is a super-2 number, since 2×12135126227847² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12135126227847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135126227827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378662322 + ... + 378694367.

It is an arithmetic number, because the mean of its divisors is an integer number (791437741050).

Almost surely, 2^{12135126227847} is an apocalyptic number.

12135126227847 is a deficient number, since it is larger than the sum of its proper divisors (6859379557353).

12135126227847 is a wasteful number, since it uses less digits than its factorization.

12135126227847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757356815 (or 757356808 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The spelling of 12135126227847 in words is "twelve trillion, one hundred thirty-five billion, one hundred twenty-six million, two hundred twenty-seven thousand, eight hundred forty-seven".