28727338893 has 8 divisors (see below), whose sum is σ = 41785220256. Its totient is φ = 17410508400.

The previous prime is 28727338883. The next prime is 28727338961. The reversal of 28727338893 is 39883372782.

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

It is not a de Polignac number, because 28727338893 - 2⁴ = 28727338877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28727338823) 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, 435262678 + ... + 435262743.

It is an arithmetic number, because the mean of its divisors is an integer number (5223152532).

Almost surely, 2^28727338893 is an apocalyptic number.

It is an amenable number.

28727338893 is a deficient number, since it is larger than the sum of its proper divisors (13057881363).

28727338893 is a wasteful number, since it uses less digits than its factorization.

28727338893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870525435.

The product of its digits is 24385536, while the sum is 60.

The spelling of 28727338893 in words is "twenty-eight billion, seven hundred twenty-seven million, three hundred thirty-eight thousand, eight hundred ninety-three".