28994375364222 has 8 divisors (see below), whose sum is σ = 57988750728456. Its totient is φ = 9664791788072.

The previous prime is 28994375364217. The next prime is 28994375364223. The reversal of 28994375364222 is 22246357349982.

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

28994375364222 is an admirable number.

It is a super-2 number, since 2×28994375364222² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28994375364223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416197947013 + ... + 2416197947024.

It is an arithmetic number, because the mean of its divisors is an integer number (7248593841057).

Almost surely, 2^{28994375364222} is an apocalyptic number.

28994375364222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28994375364222 is a wasteful number, since it uses less digits than its factorization.

28994375364222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832395894042.

The product of its digits is 313528320, while the sum is 66.

The spelling of 28994375364222 in words is "twenty-eight trillion, nine hundred ninety-four billion, three hundred seventy-five million, three hundred sixty-four thousand, two hundred twenty-two".