28066789835 has 32 divisors (see below), whose sum is σ = 40559308800. Its totient is φ = 18214035840.

The previous prime is 28066789801. The next prime is 28066789847. The reversal of 28066789835 is 53898766082.

It is not a de Polignac number, because 28066789835 - 2²² = 28062595531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637721 + ... + 680309.

It is an arithmetic number, because the mean of its divisors is an integer number (1267478400).

Almost surely, 2^28066789835 is an apocalyptic number.

28066789835 is a deficient number, since it is larger than the sum of its proper divisors (12492518965).

28066789835 is a wasteful number, since it uses less digits than its factorization.

28066789835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43611.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 28066789835 in words is "twenty-eight billion, sixty-six million, seven hundred eighty-nine thousand, eight hundred thirty-five".