30805825799 has 4 divisors (see below), whose sum is σ = 35206658064. Its totient is φ = 26404993536.

The previous prime is 30805825789. The next prime is 30805825903. The reversal of 30805825799 is 99752850803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99752850803 = 1733 ⋅57560791.

It is a cyclic number.

It is not a de Polignac number, because 30805825799 - 2²⁴ = 30789048583 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 (30805825709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200416122 + ... + 2200416135.

It is an arithmetic number, because the mean of its divisors is an integer number (8801664516).

Almost surely, 2^30805825799 is an apocalyptic number.

30805825799 is a deficient number, since it is larger than the sum of its proper divisors (4400832265).

30805825799 is an equidigital number, since it uses as much as digits as its factorization.

30805825799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400832264.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 30805825799 in words is "thirty billion, eight hundred five million, eight hundred twenty-five thousand, seven hundred ninety-nine".