12545634529 has 8 divisors (see below), whose sum is σ = 12635681760. Its totient is φ = 12455747136.

The previous prime is 12545634419. The next prime is 12545634539. The reversal of 12545634529 is 92543654521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12545634529 - 2⁷ = 12545634401 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12545634539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119862 + ... + 198640.

It is an arithmetic number, because the mean of its divisors is an integer number (1579460220).

Almost surely, 2^12545634529 is an apocalyptic number.

It is an amenable number.

12545634529 is a deficient number, since it is larger than the sum of its proper divisors (90047231).

12545634529 is an equidigital number, since it uses as much as digits as its factorization.

12545634529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79919.

The product of its digits is 1296000, while the sum is 46.

The spelling of 12545634529 in words is "twelve billion, five hundred forty-five million, six hundred thirty-four thousand, five hundred twenty-nine".