12809892722 has 16 divisors (see below), whose sum is σ = 21134883744. Its totient is φ = 5822677300.

The previous prime is 12809892713. The next prime is 12809892727. The reversal of 12809892722 is 22729890821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12809892727) 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, 2403404 + ... + 2408727.

It is an arithmetic number, because the mean of its divisors is an integer number (1320930234).

Almost surely, 2^12809892722 is an apocalyptic number.

12809892722 is a deficient number, since it is larger than the sum of its proper divisors (8324991022).

12809892722 is an equidigital number, since it uses as much as digits as its factorization.

12809892722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812166 (or 4812144 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 12809892722 in words is "twelve billion, eight hundred nine million, eight hundred ninety-two thousand, seven hundred twenty-two".