28338840311 has 8 divisors (see below), whose sum is σ = 29314146960. Its totient is φ = 27374554368.

The previous prime is 28338840287. The next prime is 28338840331. The reversal of 28338840311 is 11304883382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28338840311 - 2¹⁴ = 28338823927 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 (28338840331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749946 + ... + 2760231.

It is an arithmetic number, because the mean of its divisors is an integer number (3664268370).

Almost surely, 2^28338840311 is an apocalyptic number.

28338840311 is a deficient number, since it is larger than the sum of its proper divisors (975306649).

28338840311 is a wasteful number, since it uses less digits than its factorization.

28338840311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510353.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 28338840311 in words is "twenty-eight billion, three hundred thirty-eight million, eight hundred forty thousand, three hundred eleven".