18983026933 has 8 divisors (see below), whose sum is σ = 20446390328. Its totient is φ = 17520110784.

The previous prime is 18983026877. The next prime is 18983026961. The reversal of 18983026933 is 33962038981.

It can be written as a sum of positive squares in 4 ways, for example, as 9845005284 + 9138021649 = 99222^2 + 95593^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18983026933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18983026963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20910 + ... + 195967.

It is an arithmetic number, because the mean of its divisors is an integer number (2555798791).

Almost surely, 2^18983026933 is an apocalyptic number.

18983026933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18983026933 is a deficient number, since it is larger than the sum of its proper divisors (1463363395).

18983026933 is a wasteful number, since it uses less digits than its factorization.

18983026933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223623.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 18983026933 in words is "eighteen billion, nine hundred eighty-three million, twenty-six thousand, nine hundred thirty-three".