12601626441 has 4 divisors (see below), whose sum is σ = 16802168592. Its totient is φ = 8401084292.

The previous prime is 12601626419. The next prime is 12601626467. The reversal of 12601626441 is 14462610621.

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.

It is a cyclic number.

It is not a de Polignac number, because 12601626441 - 2¹⁵ = 12601593673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12601626491) 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, 2100271071 + ... + 2100271076.

It is an arithmetic number, because the mean of its divisors is an integer number (4200542148).

Almost surely, 2^12601626441 is an apocalyptic number.

It is an amenable number.

12601626441 is a deficient number, since it is larger than the sum of its proper divisors (4200542151).

12601626441 is an equidigital number, since it uses as much as digits as its factorization.

12601626441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200542150.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 12601626441 in words is "twelve billion, six hundred one million, six hundred twenty-six thousand, four hundred forty-one".