21746319050 has 48 divisors (see below), whose sum is σ = 41667199200. Its totient is φ = 8439090240.

The previous prime is 21746319041. The next prime is 21746319139. The reversal of 21746319050 is 5091364712.

It is a junction number, because it is equal to n+sod(n) for n = 21746318995 and 21746319013.

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 23 ways as a sum of consecutive naturals, for example, 286409 + ... + 354291.

It is an arithmetic number, because the mean of its divisors is an integer number (868066650).

Almost surely, 2^21746319050 is an apocalyptic number.

21746319050 is a deficient number, since it is larger than the sum of its proper divisors (19920880150).

21746319050 is a wasteful number, since it uses less digits than its factorization.

21746319050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68087 (or 68082 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 21746319050 in words is "twenty-one billion, seven hundred forty-six million, three hundred nineteen thousand, fifty".