28002404648222 has 4 divisors (see below), whose sum is σ = 42003606972336. Its totient is φ = 14001202324110.

The previous prime is 28002404648203. The next prime is 28002404648227. The reversal of 28002404648222 is 22284640420082.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×28002404648222² (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 (28002404648227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7000601162054 + ... + 7000601162057.

It is an arithmetic number, because the mean of its divisors is an integer number (10500901743084).

Almost surely, 2^{28002404648222} is an apocalyptic number.

28002404648222 is a deficient number, since it is larger than the sum of its proper divisors (14001202324114).

28002404648222 is a wasteful number, since it uses less digits than its factorization.

28002404648222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14001202324113.

The product of its (nonzero) digits is 786432, while the sum is 44.

The spelling of 28002404648222 in words is "twenty-eight trillion, two billion, four hundred four million, six hundred forty-eight thousand, two hundred twenty-two".