12545331511 has 8 divisors (see below), whose sum is σ = 12597043680. Its totient is φ = 12493705728.

The previous prime is 12545331499. The next prime is 12545331521. The reversal of 12545331511 is 11513354521.

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 12545331511 - 2¹⁵ = 12545298743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545331521) 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, 277935 + ... + 319903.

It is an arithmetic number, because the mean of its divisors is an integer number (1574630460).

Almost surely, 2^12545331511 is an apocalyptic number.

12545331511 is a deficient number, since it is larger than the sum of its proper divisors (51712169).

12545331511 is an equidigital number, since it uses as much as digits as its factorization.

12545331511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43193.

The product of its digits is 9000, while the sum is 31.

The spelling of 12545331511 in words is "twelve billion, five hundred forty-five million, three hundred thirty-one thousand, five hundred eleven".