28850605881 has 8 divisors (see below), whose sum is σ = 38660779200. Its totient is φ = 19137084912.

The previous prime is 28850605859. The next prime is 28850605909. The reversal of 28850605881 is 18850605882.

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

It is not a de Polignac number, because 28850605881 - 2¹¹ = 28850603833 is a prime.

It is a super-2 number, since 2×28850605881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28850605801) 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, 24162390 + ... + 24163583.

It is an arithmetic number, because the mean of its divisors is an integer number (4832597400).

Almost surely, 2^28850605881 is an apocalyptic number.

It is an amenable number.

28850605881 is a deficient number, since it is larger than the sum of its proper divisors (9810173319).

28850605881 is a wasteful number, since it uses less digits than its factorization.

28850605881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48326175.

The product of its (nonzero) digits is 1228800, while the sum is 51.

Subtracting from 28850605881 its reverse (18850605882), we obtain a palindrome (9999999999).

The spelling of 28850605881 in words is "twenty-eight billion, eight hundred fifty million, six hundred five thousand, eight hundred eighty-one".