21933335942 has 16 divisors (see below), whose sum is σ = 37972284192. Its totient is φ = 9306931200.

The previous prime is 21933335929. The next prime is 21933335951. The reversal of 21933335942 is 24953333912.

It is a junction number, because it is equal to n+sod(n) for n = 21933335893 and 21933335902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7754363 + ... + 7757190.

It is an arithmetic number, because the mean of its divisors is an integer number (2373267762).

Almost surely, 2^21933335942 is an apocalyptic number.

21933335942 is a deficient number, since it is larger than the sum of its proper divisors (16038948250).

21933335942 is a wasteful number, since it uses less digits than its factorization.

21933335942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511663.

The product of its digits is 524880, while the sum is 44.

The spelling of 21933335942 in words is "twenty-one billion, nine hundred thirty-three million, three hundred thirty-five thousand, nine hundred forty-two".