28060810771 has 16 divisors (see below), whose sum is σ = 32180573376. Its totient is φ = 23968935936.

The previous prime is 28060810721. The next prime is 28060810903. The reversal of 28060810771 is 17701806082.

It is a cyclic number.

It is not a de Polignac number, because 28060810771 - 2²³ = 28052422163 is a prime.

It is a super-2 number, since 2×28060810771² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28060810711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3377895 + ... + 3386191.

It is an arithmetic number, because the mean of its divisors is an integer number (2011285836).

Almost surely, 2^28060810771 is an apocalyptic number.

28060810771 is a deficient number, since it is larger than the sum of its proper divisors (4119762605).

28060810771 is a wasteful number, since it uses less digits than its factorization.

28060810771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9918.

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 28060810771 in words is "twenty-eight billion, sixty million, eight hundred ten thousand, seven hundred seventy-one".