28234226647296 has 144 divisors (see below), whose sum is σ = 83623843638720. Its totient is φ = 9396725022720.

The previous prime is 28234226647177. The next prime is 28234226647303. The reversal of 28234226647296 is 69274662243282.

28234226647296 is a `hidden beast` number, since 2 + 8 + 2 + 3 + 42 + 266 + 47 + 296 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×28234226647296² (a number of 28 digits) contains 22 as substring.

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, 1244311 + ... + 7616873.

It is an arithmetic number, because the mean of its divisors is an integer number (580721136380).

Almost surely, 2^{28234226647296} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28234226647296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41811921819360).

28234226647296 is an abundant number, since it is smaller than the sum of its proper divisors (55389616991424).

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

28234226647296 is an equidigital number, since it uses as much as digits as its factorization.

28234226647296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373229 (or 6373209 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 63.

The spelling of 28234226647296 in words is "twenty-eight trillion, two hundred thirty-four billion, two hundred twenty-six million, six hundred forty-seven thousand, two hundred ninety-six".