28872938938 has 8 divisors (see below), whose sum is σ = 43312104288. Its totient is φ = 14435570844.

The previous prime is 28872938917. The next prime is 28872938951. The reversal of 28872938938 is 83983927882.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408406 + ... + 473857.

It is an arithmetic number, because the mean of its divisors is an integer number (5414013036).

Almost surely, 2^28872938938 is an apocalyptic number.

28872938938 is a deficient number, since it is larger than the sum of its proper divisors (14439165350).

28872938938 is a wasteful number, since it uses less digits than its factorization.

28872938938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898628.

The product of its digits is 83607552, while the sum is 67.

The spelling of 28872938938 in words is "twenty-eight billion, eight hundred seventy-two million, nine hundred thirty-eight thousand, nine hundred thirty-eight".