28158214833 has 48 divisors (see below), whose sum is σ = 49176192000. Its totient is φ = 15166815840.

The previous prime is 28158214831. The next prime is 28158214837. The reversal of 28158214833 is 33841285182.

28158214833 is a `hidden beast` number, since 28 + 1 + 582 + 1 + 48 + 3 + 3 = 666.

It is not a de Polignac number, because 28158214833 - 2¹ = 28158214831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28158214831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179098 + ... + 297308.

It is an arithmetic number, because the mean of its divisors is an integer number (1024504000).

Almost surely, 2^28158214833 is an apocalyptic number.

It is an amenable number.

28158214833 is a deficient number, since it is larger than the sum of its proper divisors (21017977167).

28158214833 is a wasteful number, since it uses less digits than its factorization.

28158214833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118442 (or 118439 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The spelling of 28158214833 in words is "twenty-eight billion, one hundred fifty-eight million, two hundred fourteen thousand, eight hundred thirty-three".