12442399975 has 24 divisors (see below), whose sum is σ = 16020180000. Its totient is φ = 9574803840.

The previous prime is 12442399973. The next prime is 12442400023. The reversal of 12442399975 is 57999324421.

It is a happy number.

It is not a de Polignac number, because 12442399975 - 2¹ = 12442399973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442399973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163126 + ... + 226924.

It is an arithmetic number, because the mean of its divisors is an integer number (667507500).

Almost surely, 2^12442399975 is an apocalyptic number.

12442399975 is a deficient number, since it is larger than the sum of its proper divisors (3577780025).

12442399975 is a wasteful number, since it uses less digits than its factorization.

12442399975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64107 (or 64102 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The spelling of 12442399975 in words is "twelve billion, four hundred forty-two million, three hundred ninety-nine thousand, nine hundred seventy-five".