28289470854 has 64 divisors (see below), whose sum is σ = 59013759168. Its totient is φ = 9033523200.

The previous prime is 28289470849. The next prime is 28289470873. The reversal of 28289470854 is 45807498282.

It is a super-2 number, since 2×28289470854² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28289470794 and 28289470803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4180834 + ... + 4187594.

It is an arithmetic number, because the mean of its divisors is an integer number (922089987).

Almost surely, 2^28289470854 is an apocalyptic number.

28289470854 is an abundant number, since it is smaller than the sum of its proper divisors (30724288314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28289470854 is a wasteful number, since it uses less digits than its factorization.

28289470854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113.

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 28289470854 in words is "twenty-eight billion, two hundred eighty-nine million, four hundred seventy thousand, eight hundred fifty-four".