21032733926 has 8 divisors (see below), whose sum is σ = 31565444904. Its totient is φ = 10510918960.

The previous prime is 21032733913. The next prime is 21032733941. The reversal of 21032733926 is 62933723012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21032733926² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21032733926.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2719175 + ... + 2726898.

It is an arithmetic number, because the mean of its divisors is an integer number (3945680613).

Almost surely, 2^21032733926 is an apocalyptic number.

21032733926 is a deficient number, since it is larger than the sum of its proper divisors (10532710978).

21032733926 is a wasteful number, since it uses less digits than its factorization.

21032733926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448006.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 21032733926 in words is "twenty-one billion, thirty-two million, seven hundred thirty-three thousand, nine hundred twenty-six".