12542866294 has 16 divisors (see below), whose sum is σ = 21572103168. Its totient is φ = 5358002472.

The previous prime is 12542866291. The next prime is 12542866307. The reversal of 12542866294 is 49266824521.

It is a super-2 number, since 2×12542866294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542866291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454854 + ... + 1463449.

It is an arithmetic number, because the mean of its divisors is an integer number (1348256448).

Almost surely, 2^12542866294 is an apocalyptic number.

12542866294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12542866294 is a deficient number, since it is larger than the sum of its proper divisors (9029236874).

12542866294 is a wasteful number, since it uses less digits than its factorization.

12542866294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918619.

The product of its digits is 1658880, while the sum is 49.

The spelling of 12542866294 in words is "twelve billion, five hundred forty-two million, eight hundred sixty-six thousand, two hundred ninety-four".