12689430254 has 8 divisors (see below), whose sum is σ = 19036563168. Its totient is φ = 6343909200.

The previous prime is 12689430253. The next prime is 12689430277. The reversal of 12689430254 is 45203498621.

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

It is a super-2 number, since 2×12689430254² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12689430253) 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, 383087 + ... + 414890.

It is an arithmetic number, because the mean of its divisors is an integer number (2379570396).

Almost surely, 2^12689430254 is an apocalyptic number.

12689430254 is a deficient number, since it is larger than the sum of its proper divisors (6347132914).

12689430254 is an equidigital number, since it uses as much as digits as its factorization.

12689430254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805930.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 12689430254 in words is "twelve billion, six hundred eighty-nine million, four hundred thirty thousand, two hundred fifty-four".