224628408891 has 6 divisors (see below), whose sum is σ = 324463257300. Its totient is φ = 149752272588.

The previous prime is 224628408881. The next prime is 224628408937. The reversal of 224628408891 is 198804826422.

224628408891 is a `hidden beast` number, since 2 + 2 + 4 + 628 + 4 + 0 + 8 + 8 + 9 + 1 = 666.

It is not a de Polignac number, because 224628408891 - 2¹⁸ = 224628146747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224628408881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12479356041 + ... + 12479356058.

It is an arithmetic number, because the mean of its divisors is an integer number (54077209550).

Almost surely, 2^224628408891 is an apocalyptic number.

224628408891 is a deficient number, since it is larger than the sum of its proper divisors (99834848409).

224628408891 is a wasteful number, since it uses less digits than its factorization.

224628408891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24958712105 (or 24958712102 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 224628408891 in words is "two hundred twenty-four billion, six hundred twenty-eight million, four hundred eight thousand, eight hundred ninety-one".