28811835705 has 32 divisors (see below), whose sum is σ = 50385189888. Its totient is φ = 13995878400.

The previous prime is 28811835697. The next prime is 28811835737. The reversal of 28811835705 is 50753811882.

It is not a de Polignac number, because 28811835705 - 2³ = 28811835697 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1814476 + ... + 1830285.

It is an arithmetic number, because the mean of its divisors is an integer number (1574537184).

Almost surely, 2^28811835705 is an apocalyptic number.

It is an amenable number.

28811835705 is a deficient number, since it is larger than the sum of its proper divisors (21573354183).

28811835705 is a wasteful number, since it uses less digits than its factorization.

28811835705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644817.

The product of its (nonzero) digits is 537600, while the sum is 48.

The spelling of 28811835705 in words is "twenty-eight billion, eight hundred eleven million, eight hundred thirty-five thousand, seven hundred five".