28526872201 has 3 divisors (see below), whose sum is σ = 28527041101. Its totient is φ = 28526703302.

The previous prime is 28526872189. The next prime is 28526872259. The reversal of 28526872201 is 10227862582.

The square root of 28526872201 is 168899.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 28526872201 - 2¹¹ = 28526870153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28526872291) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 84450 + ... + 253348.

Almost surely, 2^28526872201 is an apocalyptic number.

28526872201 is the 168899-th square number.

28526872201 is the 84450-th centered octagonal number.

It is an amenable number.

28526872201 is a deficient number, since it is larger than the sum of its proper divisors (168900).

28526872201 is an frugal number, since it uses more digits than its factorization.

28526872201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337798 (or 168899 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 28526872201 in words is "twenty-eight billion, five hundred twenty-six million, eight hundred seventy-two thousand, two hundred one".