28469939097599 has 4 divisors (see below), whose sum is σ = 28479699107064. Its totient is φ = 28460179088136.

The previous prime is 28469939097547. The next prime is 28469939097619. The reversal of 28469939097599 is 99579093996482.

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-28469939097599 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 (28469939097499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4880000357 + ... + 4880006190.

It is an arithmetic number, because the mean of its divisors is an integer number (7119924776766).

Almost surely, 2^{28469939097599} is an apocalyptic number.

28469939097599 is a deficient number, since it is larger than the sum of its proper divisors (9760009465).

28469939097599 is an equidigital number, since it uses as much as digits as its factorization.

28469939097599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760009464.

The product of its (nonzero) digits is 21427701120, while the sum is 89.

The spelling of 28469939097599 in words is "twenty-eight trillion, four hundred sixty-nine billion, nine hundred thirty-nine million, ninety-seven thousand, five hundred ninety-nine".