12451273886 has 4 divisors (see below), whose sum is σ = 18676910832. Its totient is φ = 6225636942.

The previous prime is 12451273883. The next prime is 12451273937. The reversal of 12451273886 is 68837215421.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12451273886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451273883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112818470 + ... + 3112818473.

It is an arithmetic number, because the mean of its divisors is an integer number (4669227708).

Almost surely, 2^12451273886 is an apocalyptic number.

12451273886 is a deficient number, since it is larger than the sum of its proper divisors (6225636946).

12451273886 is an equidigital number, since it uses as much as digits as its factorization.

12451273886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225636945.

The product of its digits is 645120, while the sum is 47.

The spelling of 12451273886 in words is "twelve billion, four hundred fifty-one million, two hundred seventy-three thousand, eight hundred eighty-six".