28222790642805 has 192 divisors, whose sum is σ = 52103134782720. Its totient is φ = 12935050444800.

The previous prime is 28222790642779. The next prime is 28222790642807. The reversal of 28222790642805 is 50824609722282.

It is not a de Polignac number, because 28222790642805 - 2¹³ = 28222790634613 is a prime.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222790642807) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7018846695 + ... + 7018850715.

It is an arithmetic number, because the mean of its divisors is an integer number (271370493660).

Almost surely, 2^{28222790642805} is an apocalyptic number.

It is an amenable number.

28222790642805 is a deficient number, since it is larger than the sum of its proper divisors (23880344139915).

28222790642805 is a wasteful number, since it uses less digits than its factorization.

28222790642805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012 (or 4989 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 28222790642805 in words is "twenty-eight trillion, two hundred twenty-two billion, seven hundred ninety million, six hundred forty-two thousand, eight hundred five".