28223066235 has 32 divisors (see below), whose sum is σ = 55577733120. Its totient is φ = 11909513088.

The previous prime is 28223066161. The next prime is 28223066281. The reversal of 28223066235 is 53266032282.

It is not a de Polignac number, because 28223066235 - 2¹¹ = 28223064187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 28223066193 and 28223066202.

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, 10336755 + ... + 10339484.

It is an arithmetic number, because the mean of its divisors is an integer number (1736804160).

Almost surely, 2^28223066235 is an apocalyptic number.

28223066235 is a deficient number, since it is larger than the sum of its proper divisors (27354666885).

28223066235 is a wasteful number, since it uses less digits than its factorization.

28223066235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20676267.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 28223066235 in words is "twenty-eight billion, two hundred twenty-three million, sixty-six thousand, two hundred thirty-five".