20743724433 has 8 divisors (see below), whose sum is σ = 28246773888. Its totient is φ = 13534912304.

The previous prime is 20743724401. The next prime is 20743724461. The reversal of 20743724433 is 33442734702.

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

It is a cyclic number.

It is not a de Polignac number, because 20743724433 - 2⁵ = 20743724401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20743724391 and 20743724400.

It is not an unprimeable number, because it can be changed into a prime (20743724933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73559166 + ... + 73559447.

It is an arithmetic number, because the mean of its divisors is an integer number (3530846736).

Almost surely, 2^20743724433 is an apocalyptic number.

It is an amenable number.

20743724433 is a deficient number, since it is larger than the sum of its proper divisors (7503049455).

20743724433 is a wasteful number, since it uses less digits than its factorization.

20743724433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147118663.

The product of its (nonzero) digits is 338688, while the sum is 39.

The spelling of 20743724433 in words is "twenty billion, seven hundred forty-three million, seven hundred twenty-four thousand, four hundred thirty-three".