21323225950 has 48 divisors (see below), whose sum is σ = 44960091120. Its totient is φ = 7458808320.

The previous prime is 21323225939. The next prime is 21323225977. The reversal of 21323225950 is 5952232312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850939 + ... + 875638.

It is an arithmetic number, because the mean of its divisors is an integer number (936668565).

Almost surely, 2^21323225950 is an apocalyptic number.

21323225950 is an abundant number, since it is smaller than the sum of its proper divisors (23636865170).

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

21323225950 is a wasteful number, since it uses less digits than its factorization.

21323225950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726621 (or 1726616 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 21323225950 in words is "twenty-one billion, three hundred twenty-three million, two hundred twenty-five thousand, nine hundred fifty".