12702504491 has 4 divisors (see below), whose sum is σ = 12972770592. Its totient is φ = 12432238392.

The previous prime is 12702504457. The next prime is 12702504547. The reversal of 12702504491 is 19440520721.

12702504491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12702504491 is a prime.

It is a super-2 number, since 2×12702504491² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12702504401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135132980 + ... + 135133073.

It is an arithmetic number, because the mean of its divisors is an integer number (3243192648).

Almost surely, 2^12702504491 is an apocalyptic number.

12702504491 is a deficient number, since it is larger than the sum of its proper divisors (270266101).

12702504491 is an equidigital number, since it uses as much as digits as its factorization.

12702504491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270266100.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 12702504491 in words is "twelve billion, seven hundred two million, five hundred four thousand, four hundred ninety-one".