20783093183 has 4 divisors (see below), whose sum is σ = 20784914568. Its totient is φ = 20781271800.

The previous prime is 20783093161. The next prime is 20783093239. The reversal of 20783093183 is 38139038702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20783093183 - 2⁶ = 20783093119 is a prime.

It is a super-2 number, since 2×20783093183² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20783090183) 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, 893468 + ... + 916433.

It is an arithmetic number, because the mean of its divisors is an integer number (5196228642).

Almost surely, 2^20783093183 is an apocalyptic number.

20783093183 is a deficient number, since it is larger than the sum of its proper divisors (1821385).

20783093183 is a wasteful number, since it uses less digits than its factorization.

20783093183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821384.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 20783093183 in words is "twenty billion, seven hundred eighty-three million, ninety-three thousand, one hundred eighty-three".