12689850422 has 8 divisors (see below), whose sum is σ = 19275722400. Its totient is φ = 6264609624.

The previous prime is 12689850419. The next prime is 12689850469. The reversal of 12689850422 is 22405898621.

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

It is a super-2 number, since 2×12689850422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40157597 + ... + 40157912.

It is an arithmetic number, because the mean of its divisors is an integer number (2409465300).

Almost surely, 2^12689850422 is an apocalyptic number.

12689850422 is a deficient number, since it is larger than the sum of its proper divisors (6585871978).

12689850422 is an equidigital number, since it uses as much as digits as its factorization.

12689850422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80315590.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 12689850422 in words is "twelve billion, six hundred eighty-nine million, eight hundred fifty thousand, four hundred twenty-two".