28216832361 has 8 divisors (see below), whose sum is σ = 37627450560. Its totient is φ = 18808717872.

The previous prime is 28216832359. The next prime is 28216832381. The reversal of 28216832361 is 16323861282.

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

It is not a de Polignac number, because 28216832361 - 2¹ = 28216832359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28216832381) 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, 599470 + ... + 644823.

It is an arithmetic number, because the mean of its divisors is an integer number (4703431320).

Almost surely, 2^28216832361 is an apocalyptic number.

It is an amenable number.

28216832361 is a deficient number, since it is larger than the sum of its proper divisors (9410618199).

28216832361 is a wasteful number, since it uses less digits than its factorization.

28216832361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251855.

The product of its digits is 165888, while the sum is 42.

The spelling of 28216832361 in words is "twenty-eight billion, two hundred sixteen million, eight hundred thirty-two thousand, three hundred sixty-one".