12994632543 has 32 divisors (see below), whose sum is σ = 17831557120. Its totient is φ = 8414461440.

The previous prime is 12994632527. The next prime is 12994632571. The reversal of 12994632543 is 34523649921.

It is not a de Polignac number, because 12994632543 - 2⁴ = 12994632527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12994632492 and 12994632501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12994632583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8726343 + ... + 8727831.

It is an arithmetic number, because the mean of its divisors is an integer number (557236160).

Almost surely, 2^12994632543 is an apocalyptic number.

12994632543 is a deficient number, since it is larger than the sum of its proper divisors (4836924577).

12994632543 is a wasteful number, since it uses less digits than its factorization.

12994632543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119.

The product of its digits is 1399680, while the sum is 48.

The spelling of 12994632543 in words is "twelve billion, nine hundred ninety-four million, six hundred thirty-two thousand, five hundred forty-three".