12542626463 has 4 divisors (see below), whose sum is σ = 12615127368. Its totient is φ = 12470125560.

The previous prime is 12542626433. The next prime is 12542626483. The reversal of 12542626463 is 36462624521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36462624521 = 223 ⋅163509527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12542626463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12542626463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542626433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36250193 + ... + 36250538.

It is an arithmetic number, because the mean of its divisors is an integer number (3153781842).

Almost surely, 2^12542626463 is an apocalyptic number.

12542626463 is a deficient number, since it is larger than the sum of its proper divisors (72500905).

12542626463 is an equidigital number, since it uses as much as digits as its factorization.

12542626463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72500904.

The product of its digits is 414720, while the sum is 41.

The spelling of 12542626463 in words is "twelve billion, five hundred forty-two million, six hundred twenty-six thousand, four hundred sixty-three".