28459922117 has 8 divisors (see below), whose sum is σ = 31048844160. Its totient is φ = 25871276160.

The previous prime is 28459922111. The next prime is 28459922149. The reversal of 28459922117 is 71122995482.

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

It is a cyclic number.

It is not a de Polignac number, because 28459922117 - 2¹² = 28459918021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28459922111) 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, 188228 + ... + 303890.

It is an arithmetic number, because the mean of its divisors is an integer number (3881105520).

Almost surely, 2^28459922117 is an apocalyptic number.

It is an amenable number.

28459922117 is a deficient number, since it is larger than the sum of its proper divisors (2588922043).

28459922117 is a wasteful number, since it uses less digits than its factorization.

28459922117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138043.

The product of its digits is 725760, while the sum is 50.

The spelling of 28459922117 in words is "twenty-eight billion, four hundred fifty-nine million, nine hundred twenty-two thousand, one hundred seventeen".