28000775330 has 32 divisors (see below), whose sum is σ = 55042727040. Its totient is φ = 10171102720.

The previous prime is 28000775311. The next prime is 28000775357. The reversal of 28000775330 is 3357700082.

It is a super-2 number, since 2×28000775330² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34814 + ... + 239193.

It is an arithmetic number, because the mean of its divisors is an integer number (1720085220).

Almost surely, 2^28000775330 is an apocalyptic number.

28000775330 is a deficient number, since it is larger than the sum of its proper divisors (27041951710).

28000775330 is a wasteful number, since it uses less digits than its factorization.

28000775330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274954.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 28000775330 in words is "twenty-eight billion, seven hundred seventy-five thousand, three hundred thirty".