28922938172895 has 16 divisors (see below), whose sum is σ = 49836447313632. Its totient is φ = 14238984946560.

The previous prime is 28922938172749. The next prime is 28922938172923. The reversal of 28922938172895 is 59827183922982.

It is not a de Polignac number, because 28922938172895 - 2¹⁵ = 28922938140127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74161379736 + ... + 74161380125.

It is an arithmetic number, because the mean of its divisors is an integer number (3114777957102).

Almost surely, 2^{28922938172895} is an apocalyptic number.

28922938172895 is a deficient number, since it is larger than the sum of its proper divisors (20913509140737).

28922938172895 is a wasteful number, since it uses less digits than its factorization.

28922938172895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148322759882.

The product of its digits is 627056640, while the sum is 75.

The spelling of 28922938172895 in words is "twenty-eight trillion, nine hundred twenty-two billion, nine hundred thirty-eight million, one hundred seventy-two thousand, eight hundred ninety-five".