12892513418 has 8 divisors (see below), whose sum is σ = 19341126948. Its totient is φ = 6445471104.

The previous prime is 12892513411. The next prime is 12892513451. The reversal of 12892513418 is 81431529821.

It can be written as a sum of positive squares in 2 ways, for example, as 11973392929 + 919120489 = 109423^2 + 30317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12892513411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372071 + ... + 405242.

Almost surely, 2^12892513418 is an apocalyptic number.

12892513418 is a deficient number, since it is larger than the sum of its proper divisors (6448613530).

12892513418 is an equidigital number, since it uses as much as digits as its factorization.

12892513418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785608.

The product of its digits is 138240, while the sum is 44.

The spelling of 12892513418 in words is "twelve billion, eight hundred ninety-two million, five hundred thirteen thousand, four hundred eighteen".