20183838379 has 2 divisors, whose sum is σ = 20183838380. Its totient is φ = 20183838378.

The previous prime is 20183838349. The next prime is 20183838397. The reversal of 20183838379 is 97383838102.

Together with next prime (20183838397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20183838379 - 2⁹ = 20183837867 is a prime.

It is not a weakly prime, because it can be changed into another prime (20183838349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10091919189 + 10091919190.

It is an arithmetic number, because the mean of its divisors is an integer number (10091919190).

Almost surely, 2^20183838379 is an apocalyptic number.

20183838379 is a deficient number, since it is larger than the sum of its proper divisors (1).

20183838379 is an equidigital number, since it uses as much as digits as its factorization.

20183838379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 20183838379 in words is "twenty billion, one hundred eighty-three million, eight hundred thirty-eight thousand, three hundred seventy-nine".