30809724299 has 4 divisors (see below), whose sum is σ = 30813167640. Its totient is φ = 30806280960.

The previous prime is 30809724271. The next prime is 30809724301. The reversal of 30809724299 is 99242790803.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30809724299 is a prime.

It is a super-2 number, since 2×30809724299² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30809724299.

It is not an unprimeable number, because it can be changed into a prime (30809724229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708214 + ... + 1726155.

It is an arithmetic number, because the mean of its divisors is an integer number (7703291910).

Almost surely, 2^30809724299 is an apocalyptic number.

30809724299 is a deficient number, since it is larger than the sum of its proper divisors (3443341).

30809724299 is an equidigital number, since it uses as much as digits as its factorization.

30809724299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443340.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 30809724299 in words is "thirty billion, eight hundred nine million, seven hundred twenty-four thousand, two hundred ninety-nine".