12729915773 has 8 divisors (see below), whose sum is σ = 13436430720. Its totient is φ = 12027052800.

The previous prime is 12729915769. The next prime is 12729915799. The reversal of 12729915773 is 37751992721.

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

It is a cyclic number.

It is not a de Polignac number, because 12729915773 - 2² = 12729915769 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12729915703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905828 + ... + 919773.

It is an arithmetic number, because the mean of its divisors is an integer number (1679553840).

Almost surely, 2^12729915773 is an apocalyptic number.

It is an amenable number.

12729915773 is a deficient number, since it is larger than the sum of its proper divisors (706514947).

12729915773 is a wasteful number, since it uses less digits than its factorization.

12729915773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825987.

The product of its digits is 1666980, while the sum is 53.

The spelling of 12729915773 in words is "twelve billion, seven hundred twenty-nine million, nine hundred fifteen thousand, seven hundred seventy-three".