12601146529 has 4 divisors (see below), whose sum is σ = 12609169200. Its totient is φ = 12593123860.

The previous prime is 12601146479. The next prime is 12601146533. The reversal of 12601146529 is 92564110621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92564110621 = 1867 ⋅49579063.

It is a cyclic number.

It is not a de Polignac number, because 12601146529 - 2⁷ = 12601146401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12601146539) 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, 4008979 + ... + 4012120.

It is an arithmetic number, because the mean of its divisors is an integer number (3152292300).

Almost surely, 2^12601146529 is an apocalyptic number.

It is an amenable number.

12601146529 is a deficient number, since it is larger than the sum of its proper divisors (8022671).

12601146529 is an equidigital number, since it uses as much as digits as its factorization.

12601146529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022670.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 12601146529 in words is "twelve billion, six hundred one million, one hundred forty-six thousand, five hundred twenty-nine".