1229791814999 has 6 divisors (see below), whose sum is σ = 1351754639760. Its totient is φ = 1117992558980.

The previous prime is 1229791814971. The next prime is 1229791815011. The reversal of 1229791814999 is 9994181979221.

It is not a de Polignac number, because 1229791814999 - 2²⁴ = 1229775037783 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 (1229791814969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5081784239 + ... + 5081784480.

It is an arithmetic number, because the mean of its divisors is an integer number (225292439960).

Almost surely, 2^{1229791814999} is an apocalyptic number.

1229791814999 is a deficient number, since it is larger than the sum of its proper divisors (121962824761).

1229791814999 is a wasteful number, since it uses less digits than its factorization.

1229791814999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163568741 (or 10163568730 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 71.

The spelling of 1229791814999 in words is "one trillion, two hundred twenty-nine billion, seven hundred ninety-one million, eight hundred fourteen thousand, nine hundred ninety-nine".