21833838850 has 48 divisors (see below), whose sum is σ = 40957753536. Its totient is φ = 8659224000.

The previous prime is 21833838839. The next prime is 21833838877. The reversal of 21833838850 is 5883833812.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21833838794 and 21833838803.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3512245 + ... + 3518455.

It is an arithmetic number, because the mean of its divisors is an integer number (853286532).

Almost surely, 2^21833838850 is an apocalyptic number.

21833838850 is a deficient number, since it is larger than the sum of its proper divisors (19123914686).

21833838850 is a wasteful number, since it uses less digits than its factorization.

21833838850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811 (or 6806 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 21833838850 in words is "twenty-one billion, eight hundred thirty-three million, eight hundred thirty-eight thousand, eight hundred fifty".