28695234028 has 24 divisors (see below), whose sum is σ = 51101077104. Its totient is φ = 14097096000.

The previous prime is 28695233993. The next prime is 28695234059. The reversal of 28695234028 is 82043259682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218175 + ... + 324022.

It is an arithmetic number, because the mean of its divisors is an integer number (2129211546).

Almost surely, 2^28695234028 is an apocalyptic number.

It is an amenable number.

28695234028 is a deficient number, since it is larger than the sum of its proper divisors (22405843076).

28695234028 is a wasteful number, since it uses less digits than its factorization.

28695234028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542433 (or 542431 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 28695234028 in words is "twenty-eight billion, six hundred ninety-five million, two hundred thirty-four thousand, twenty-eight".