21922768553274 has 64 divisors (see below), whose sum is σ = 48740437324800. Its totient is φ = 7304114361456.

The previous prime is 21922768553267. The next prime is 21922768553297. The reversal of 21922768553274 is 47235586722912.

21922768553274 is a `hidden beast` number, since 2 + 1 + 9 + 2 + 2 + 7 + 6 + 8 + 553 + 2 + 74 = 666.

It is a super-2 number, since 2×21922768553274² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1579101937 + ... + 1579115819.

It is an arithmetic number, because the mean of its divisors is an integer number (761569333200).

Almost surely, 2^{21922768553274} is an apocalyptic number.

21922768553274 is an abundant number, since it is smaller than the sum of its proper divisors (26817668771526).

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

21922768553274 is a wasteful number, since it uses less digits than its factorization.

21922768553274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25696 (or 25690 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 63.

The spelling of 21922768553274 in words is "twenty-one trillion, nine hundred twenty-two billion, seven hundred sixty-eight million, five hundred fifty-three thousand, two hundred seventy-four".