28224668492011 has 32 divisors (see below), whose sum is σ = 30492184320000. Its totient is φ = 26077858235520.

The previous prime is 28224668491951. The next prime is 28224668492029. The reversal of 28224668492011 is 11029486642282.

It is a happy number.

It is not a de Polignac number, because 28224668492011 - 2²⁷ = 28224534274283 is a prime.

It is a super-2 number, since 2×28224668492011² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28224668492411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8126505 + ... + 11067493.

It is an arithmetic number, because the mean of its divisors is an integer number (952880760000).

Almost surely, 2^{28224668492011} is an apocalyptic number.

28224668492011 is a deficient number, since it is larger than the sum of its proper divisors (2267515827989).

28224668492011 is a wasteful number, since it uses less digits than its factorization.

28224668492011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941227.

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 28224668492011 in words is "twenty-eight trillion, two hundred twenty-four billion, six hundred sixty-eight million, four hundred ninety-two thousand, eleven".