12534479263 has 4 divisors (see below), whose sum is σ = 12536225680. Its totient is φ = 12532732848.

The previous prime is 12534479207. The next prime is 12534479273. The reversal of 12534479263 is 36297443521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36297443521 = 109 ⋅333004069.

It is a cyclic number.

It is not a de Polignac number, because 12534479263 - 2²¹ = 12532382111 is a prime.

It is a super-3 number, since 3×12534479263³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534479203) 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, 862398 + ... + 876811.

It is an arithmetic number, because the mean of its divisors is an integer number (3134056420).

Almost surely, 2^12534479263 is an apocalyptic number.

12534479263 is a deficient number, since it is larger than the sum of its proper divisors (1746417).

12534479263 is an equidigital number, since it uses as much as digits as its factorization.

12534479263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746416.

The product of its digits is 1088640, while the sum is 46.

The spelling of 12534479263 in words is "twelve billion, five hundred thirty-four million, four hundred seventy-nine thousand, two hundred sixty-three".