21608750422 has 32 divisors (see below), whose sum is σ = 39232097280. Its totient is φ = 8714025600.

The previous prime is 21608750419. The next prime is 21608750459. The reversal of 21608750422 is 22405780612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305297 + ... + 1321747.

It is an arithmetic number, because the mean of its divisors is an integer number (1226003040).

Almost surely, 2^21608750422 is an apocalyptic number.

21608750422 is a deficient number, since it is larger than the sum of its proper divisors (17623346858).

21608750422 is a wasteful number, since it uses less digits than its factorization.

21608750422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21996.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 21608750422 in words is "twenty-one billion, six hundred eight million, seven hundred fifty thousand, four hundred twenty-two".