28212727533 has 8 divisors (see below), whose sum is σ = 37639955808. Its totient is φ = 18796992144.

The previous prime is 28212727523. The next prime is 28212727559. The reversal of 28212727533 is 33572721282.

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

It is not a de Polignac number, because 28212727533 - 2¹² = 28212723437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28212727523) 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, 2867491 + ... + 2877312.

It is an arithmetic number, because the mean of its divisors is an integer number (4704994476).

Almost surely, 2^28212727533 is an apocalyptic number.

It is an amenable number.

28212727533 is a deficient number, since it is larger than the sum of its proper divisors (9427228275).

28212727533 is a wasteful number, since it uses less digits than its factorization.

28212727533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746443.

The product of its digits is 282240, while the sum is 42.

The spelling of 28212727533 in words is "twenty-eight billion, two hundred twelve million, seven hundred twenty-seven thousand, five hundred thirty-three".