12461607523 has 4 divisors (see below), whose sum is σ = 12463161880. Its totient is φ = 12460053168.

The previous prime is 12461607451. The next prime is 12461607551. The reversal of 12461607523 is 32570616421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12461607523 - 2²⁵ = 12428053091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12461607623) 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, 765090 + ... + 781207.

It is an arithmetic number, because the mean of its divisors is an integer number (3115790470).

Almost surely, 2^12461607523 is an apocalyptic number.

12461607523 is a deficient number, since it is larger than the sum of its proper divisors (1554357).

12461607523 is an equidigital number, since it uses as much as digits as its factorization.

12461607523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554356.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 12461607523 in words is "twelve billion, four hundred sixty-one million, six hundred seven thousand, five hundred twenty-three".