12729798425 has 24 divisors (see below), whose sum is σ = 16137574272. Its totient is φ = 9956792000.

The previous prime is 12729798401. The next prime is 12729798463. The reversal of 12729798425 is 52489792721.

It is not a de Polignac number, because 12729798425 - 2¹⁰ = 12729797401 is a prime.

It is a super-3 number, since 3×12729798425³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1241570 + ... + 1251780.

It is an arithmetic number, because the mean of its divisors is an integer number (672398928).

Almost surely, 2^12729798425 is an apocalyptic number.

It is an amenable number.

12729798425 is a deficient number, since it is larger than the sum of its proper divisors (3407775847).

12729798425 is a wasteful number, since it uses less digits than its factorization.

12729798425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329 (or 11324 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The spelling of 12729798425 in words is "twelve billion, seven hundred twenty-nine million, seven hundred ninety-eight thousand, four hundred twenty-five".