12586248545 has 8 divisors (see below), whose sum is σ = 16265305896. Its totient is φ = 9294460416.

The previous prime is 12586248541. The next prime is 12586248599. The reversal of 12586248545 is 54584268521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17372224 + 12568876321 = 4168^2 + 112111^2 .

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 12586248545 - 2² = 12586248541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12586248493 and 12586248502.

It is not an unprimeable number, because it can be changed into a prime (12586248541) 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, 96817232 + ... + 96817361.

It is an arithmetic number, because the mean of its divisors is an integer number (2033163237).

Almost surely, 2^12586248545 is an apocalyptic number.

It is an amenable number.

12586248545 is a deficient number, since it is larger than the sum of its proper divisors (3679057351).

12586248545 is a wasteful number, since it uses less digits than its factorization.

12586248545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193634611.

The product of its digits is 3072000, while the sum is 50.

The spelling of 12586248545 in words is "twelve billion, five hundred eighty-six million, two hundred forty-eight thousand, five hundred forty-five".