12581129851 has 8 divisors (see below), whose sum is σ = 13467758400. Its totient is φ = 11716947720.

The previous prime is 12581129843. The next prime is 12581129867. The reversal of 12581129851 is 15892118521.

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 12581129851 - 2³ = 12581129843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12581129798 and 12581129807.

It is not an unprimeable number, because it can be changed into a prime (12581229851) 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, 5610445 + ... + 5612686.

It is an arithmetic number, because the mean of its divisors is an integer number (1683469800).

Almost surely, 2^12581129851 is an apocalyptic number.

12581129851 is a deficient number, since it is larger than the sum of its proper divisors (886628549).

12581129851 is a wasteful number, since it uses less digits than its factorization.

12581129851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223209.

The product of its digits is 57600, while the sum is 43.

The spelling of 12581129851 in words is "twelve billion, five hundred eighty-one million, one hundred twenty-nine thousand, eight hundred fifty-one".