12542067747 has 48 divisors (see below), whose sum is σ = 21238319232. Its totient is φ = 7047279360.

The previous prime is 12542067737. The next prime is 12542067749. The reversal of 12542067747 is 74776024521.

12542067747 is a `hidden beast` number, since 1 + 2 + 542 + 0 + 67 + 7 + 47 = 666.

It is not a de Polignac number, because 12542067747 - 2⁶ = 12542067683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12542067749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57148 + ... + 168374.

It is an arithmetic number, because the mean of its divisors is an integer number (442464984).

Almost surely, 2^12542067747 is an apocalyptic number.

12542067747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12542067747 is a deficient number, since it is larger than the sum of its proper divisors (8696251485).

12542067747 is a wasteful number, since it uses less digits than its factorization.

12542067747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111328 (or 111325 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 12542067747 in words is "twelve billion, five hundred forty-two million, sixty-seven thousand, seven hundred forty-seven".