20830731833 has 8 divisors (see below), whose sum is σ = 21979177920. Its totient is φ = 19687494960.

The previous prime is 20830731811. The next prime is 20830731847. The reversal of 20830731833 is 33813703802.

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 20830731833 - 2⁸ = 20830731577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20830736833) 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, 1294085 + ... + 1310082.

It is an arithmetic number, because the mean of its divisors is an integer number (2747397240).

Almost surely, 2^20830731833 is an apocalyptic number.

It is an amenable number.

20830731833 is a deficient number, since it is larger than the sum of its proper divisors (1148446087).

20830731833 is a wasteful number, since it uses less digits than its factorization.

20830731833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604607.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 20830731833 in words is "twenty billion, eight hundred thirty million, seven hundred thirty-one thousand, eight hundred thirty-three".