28285011075 has 24 divisors (see below), whose sum is σ = 46794934000. Its totient is φ = 15075538560.

The previous prime is 28285011023. The next prime is 28285011137. The reversal of 28285011075 is 57011058282.

It is not a de Polignac number, because 28285011075 - 2⁹ = 28285010563 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5560 + ... + 237909.

Almost surely, 2^28285011075 is an apocalyptic number.

28285011075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28285011075 is a deficient number, since it is larger than the sum of its proper divisors (18509922925).

28285011075 is a wasteful number, since it uses less digits than its factorization.

28285011075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245031 (or 245026 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The spelling of 28285011075 in words is "twenty-eight billion, two hundred eighty-five million, eleven thousand, seventy-five".