28565027079876 has 297 divisors, whose sum is σ = 85859811345581. Its totient is φ = 8007446944224.

The previous prime is 28565027079863. The next prime is 28565027079887. The reversal of 28565027079876 is 67897072056582.

The square root of 28565027079876 is 5344626.

It is a perfect power (a square), and thus also a powerful number.

28565027079876 is a `hidden beast` number, since 28 + 5 + 6 + 502 + 7 + 0 + 7 + 98 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20592445652100 + 7972581427776 = 4537890^2 + 2823576^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 98 ways as a sum of consecutive naturals, for example, 538962775066 + ... + 538962775118.

Almost surely, 2^{28565027079876} is an apocalyptic number.

28565027079876 is the 5344626-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28565027079876

28565027079876 is an abundant number, since it is smaller than the sum of its proper divisors (57294784265705).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28565027079876 is an frugal number, since it uses more digits than its factorization.

28565027079876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 72.

The spelling of 28565027079876 in words is "twenty-eight trillion, five hundred sixty-five billion, twenty-seven million, seventy-nine thousand, eight hundred seventy-six".