28484852771 has 8 divisors (see below), whose sum is σ = 28718477424. Its totient is φ = 28252180480.

The previous prime is 28484852761. The next prime is 28484852783. The reversal of 28484852771 is 17725848482.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28484852771 is a prime.

It is a super-2 number, since 2×28484852771² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28484852701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177965 + ... + 297726.

It is an arithmetic number, because the mean of its divisors is an integer number (3589809678).

Almost surely, 2^28484852771 is an apocalyptic number.

28484852771 is a deficient number, since it is larger than the sum of its proper divisors (233624653).

28484852771 is a wasteful number, since it uses less digits than its factorization.

28484852771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476181.

The product of its digits is 8028160, while the sum is 56.

The spelling of 28484852771 in words is "twenty-eight billion, four hundred eighty-four million, eight hundred fifty-two thousand, seven hundred seventy-one".