28005490299 has 16 divisors (see below), whose sum is σ = 39914509824. Its totient is φ = 17422996800.

The previous prime is 28005490297. The next prime is 28005490307. The reversal of 28005490299 is 99209450082.

It is a happy number.

It is not a de Polignac number, because 28005490299 - 2¹ = 28005490297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28005490297) 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 15 ways as a sum of consecutive naturals, for example, 4946887 + ... + 4952544.

It is an arithmetic number, because the mean of its divisors is an integer number (2494656864).

Almost surely, 2^28005490299 is an apocalyptic number.

28005490299 is a deficient number, since it is larger than the sum of its proper divisors (11909019525).

28005490299 is a wasteful number, since it uses less digits than its factorization.

28005490299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899498.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 28005490299 in words is "twenty-eight billion, five million, four hundred ninety thousand, two hundred ninety-nine".