12525128547 has 8 divisors (see below), whose sum is σ = 16757169744. Its totient is φ = 8321586528.

The previous prime is 12525128443. The next prime is 12525128557. The reversal of 12525128547 is 74582152521.

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

It is not a de Polignac number, because 12525128547 - 2²² = 12520934243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12525128499 and 12525128508.

It is not an unprimeable number, because it can be changed into a prime (12525128557) 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, 7123768 + ... + 7125525.

It is an arithmetic number, because the mean of its divisors is an integer number (2094646218).

Almost surely, 2^12525128547 is an apocalyptic number.

12525128547 is a deficient number, since it is larger than the sum of its proper divisors (4232041197).

12525128547 is a wasteful number, since it uses less digits than its factorization.

12525128547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14249589.

The product of its digits is 224000, while the sum is 42.

The spelling of 12525128547 in words is "twelve billion, five hundred twenty-five million, one hundred twenty-eight thousand, five hundred forty-seven".