12542667007 has 4 divisors (see below), whose sum is σ = 13507487560. Its totient is φ = 11577846456.

The previous prime is 12542667001. The next prime is 12542667017. The reversal of 12542667007 is 70076624521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70076624521 = 23581 ⋅2971741.

It is a cyclic number.

It is not a de Polignac number, because 12542667007 - 2³ = 12542666999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542667001) 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 3 ways as a sum of consecutive naturals, for example, 482410257 + ... + 482410282.

It is an arithmetic number, because the mean of its divisors is an integer number (3376871890).

Almost surely, 2^12542667007 is an apocalyptic number.

12542667007 is a deficient number, since it is larger than the sum of its proper divisors (964820553).

12542667007 is an equidigital number, since it uses as much as digits as its factorization.

12542667007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964820552.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 12542667007 in words is "twelve billion, five hundred forty-two million, six hundred sixty-seven thousand, seven".