21833224734 has 8 divisors (see below), whose sum is σ = 43666449480. Its totient is φ = 7277741576.

The previous prime is 21833224723. The next prime is 21833224739. The reversal of 21833224734 is 43742233812.

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

21833224734 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21833224692 and 21833224701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21833224739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819435389 + ... + 1819435400.

It is an arithmetic number, because the mean of its divisors is an integer number (5458306185).

Almost surely, 2^21833224734 is an apocalyptic number.

21833224734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21833224734 is a wasteful number, since it uses less digits than its factorization.

21833224734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638870794.

The product of its digits is 193536, while the sum is 39.

The spelling of 21833224734 in words is "twenty-one billion, eight hundred thirty-three million, two hundred twenty-four thousand, seven hundred thirty-four".