20073917833 has 4 divisors (see below), whose sum is σ = 20109074128. Its totient is φ = 20038761540.

The previous prime is 20073917797. The next prime is 20073917837. The reversal of 20073917833 is 33871937002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20073917833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20073917833.

It is not an unprimeable number, because it can be changed into a prime (20073917837) 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, 17577291 + ... + 17578432.

It is an arithmetic number, because the mean of its divisors is an integer number (5027268532).

Almost surely, 2^20073917833 is an apocalyptic number.

It is an amenable number.

20073917833 is a deficient number, since it is larger than the sum of its proper divisors (35156295).

20073917833 is an equidigital number, since it uses as much as digits as its factorization.

20073917833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35156294.

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 20073917833 in words is "twenty billion, seventy-three million, nine hundred seventeen thousand, eight hundred thirty-three".