28004932299 has 4 divisors (see below), whose sum is σ = 37339909736. Its totient is φ = 18669954864.

The previous prime is 28004932283. The next prime is 28004932301. The reversal of 28004932299 is 99223940082.

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

It is not a de Polignac number, because 28004932299 - 2⁴ = 28004932283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28004932259) 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, 4667488714 + ... + 4667488719.

It is an arithmetic number, because the mean of its divisors is an integer number (9334977434).

Almost surely, 2^28004932299 is an apocalyptic number.

28004932299 is a deficient number, since it is larger than the sum of its proper divisors (9334977437).

28004932299 is an equidigital number, since it uses as much as digits as its factorization.

28004932299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9334977436.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 28004932299 in words is "twenty-eight billion, four million, nine hundred thirty-two thousand, two hundred ninety-nine".