28922938172888 has 16 divisors (see below), whose sum is σ = 54728036682000. Its totient is φ = 14328795057696.

The previous prime is 28922938172749. The next prime is 28922938172923. The reversal of 28922938172888 is 88827183922982.

It is a congruent number.

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, 16584252668 + ... + 16584254411.

It is an arithmetic number, because the mean of its divisors is an integer number (3420502292625).

Almost surely, 2^{28922938172888} is an apocalyptic number.

It is an amenable number.

28922938172888 is a deficient number, since it is larger than the sum of its proper divisors (25805098509112).

28922938172888 is a wasteful number, since it uses less digits than its factorization.

28922938172888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33168507194 (or 33168507190 counting only the distinct ones).

The product of its digits is 891813888, while the sum is 77.

The spelling of 28922938172888 in words is "twenty-eight trillion, nine hundred twenty-two billion, nine hundred thirty-eight million, one hundred seventy-two thousand, eight hundred eighty-eight".