28911492299 has 4 divisors (see below), whose sum is σ = 29197744800. Its totient is φ = 28625239800.

The previous prime is 28911492277. The next prime is 28911492301. The reversal of 28911492299 is 99229411982.

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-28911492299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28911492199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143126099 + ... + 143126300.

It is an arithmetic number, because the mean of its divisors is an integer number (7299436200).

Almost surely, 2^28911492299 is an apocalyptic number.

28911492299 is a deficient number, since it is larger than the sum of its proper divisors (286252501).

28911492299 is a wasteful number, since it uses less digits than its factorization.

28911492299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286252500.

The product of its digits is 1679616, while the sum is 56.

The spelling of 28911492299 in words is "twenty-eight billion, nine hundred eleven million, four hundred ninety-two thousand, two hundred ninety-nine".