28527147801 has 6 divisors (see below), whose sum is σ = 41205880170. Its totient is φ = 19018098528.

The previous prime is 28527147791. The next prime is 28527147809. The reversal of 28527147801 is 10874172582.

28527147801 is a `hidden beast` number, since 2 + 8 + 527 + 1 + 47 + 80 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24366897801 + 4160250000 = 156099^2 + 64500^2 .

It is not a de Polignac number, because 28527147801 - 2¹⁴ = 28527131417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28527147809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1584841536 + ... + 1584841553.

It is an arithmetic number, because the mean of its divisors is an integer number (6867646695).

Almost surely, 2^28527147801 is an apocalyptic number.

It is an amenable number.

28527147801 is a deficient number, since it is larger than the sum of its proper divisors (12678732369).

28527147801 is a wasteful number, since it uses less digits than its factorization.

28527147801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169683095 (or 3169683092 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 28527147801 in words is "twenty-eight billion, five hundred twenty-seven million, one hundred forty-seven thousand, eight hundred one".