18131976383 has 2 divisors, whose sum is σ = 18131976384. Its totient is φ = 18131976382.

The previous prime is 18131976299. The next prime is 18131976409. The reversal of 18131976383 is 38367913181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18131976383 - 2¹⁰ = 18131975359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18131976683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9065988191 + 9065988192.

It is an arithmetic number, because the mean of its divisors is an integer number (9065988192).

Almost surely, 2^18131976383 is an apocalyptic number.

18131976383 is a deficient number, since it is larger than the sum of its proper divisors (1).

18131976383 is an equidigital number, since it uses as much as digits as its factorization.

18131976383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The spelling of 18131976383 in words is "eighteen billion, one hundred thirty-one million, nine hundred seventy-six thousand, three hundred eighty-three".