22028974231950 has 576 divisors, whose sum is σ = 69008200335360. Its totient is φ = 4934589880320.

The previous prime is 22028974231949. The next prime is 22028974231963. The reversal of 22028974231950 is 5913247982022.

22028974231950 is a `hidden beast` number, since 2 + 2 + 0 + 28 + 9 + 7 + 423 + 195 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 17223591411 + ... + 17223592689.

It is an arithmetic number, because the mean of its divisors is an integer number (119805903360).

Almost surely, 2^{22028974231950} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22028974231950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34504100167680).

22028974231950 is an abundant number, since it is smaller than the sum of its proper divisors (46979226103410).

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

22028974231950 is a wasteful number, since it uses less digits than its factorization.

22028974231950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 22028974231950 in words is "twenty-two trillion, twenty-eight billion, nine hundred seventy-four million, two hundred thirty-one thousand, nine hundred fifty".