12537854442 has 24 divisors (see below), whose sum is σ = 27167743044. Its totient is φ = 4178916864.

The previous prime is 12537854437. The next prime is 12537854449. The reversal of 12537854442 is 24445873521.

12537854442 is a `hidden beast` number, since 12 + 53 + 7 + 8 + 544 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11985651441 + 552203001 = 109479^2 + 23499^2 .

It is not an unprimeable number, because it can be changed into a prime (12537854449) 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 in 11 ways as a sum of consecutive naturals, for example, 247818 + ... + 294090.

Almost surely, 2^12537854442 is an apocalyptic number.

12537854442 is an abundant number, since it is smaller than the sum of its proper divisors (14629888602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12537854442 is a wasteful number, since it uses less digits than its factorization.

12537854442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61334 (or 61331 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The spelling of 12537854442 in words is "twelve billion, five hundred thirty-seven million, eight hundred fifty-four thousand, four hundred forty-two".