381619982179823 has 2 divisors, whose sum is σ = 381619982179824. Its totient is φ = 381619982179822.

The previous prime is 381619982179763. The next prime is 381619982179837. The reversal of 381619982179823 is 328971289916183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381619982179823 - 2³⁰ = 381618908437999 is a prime.

It is a super-2 number, since 2×381619982179823² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381619982179853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190809991089911 + 190809991089912.

It is an arithmetic number, because the mean of its divisors is an integer number (190809991089912).

Almost surely, 2^{381619982179823} is an apocalyptic number.

381619982179823 is a deficient number, since it is larger than the sum of its proper divisors (1).

381619982179823 is an equidigital number, since it uses as much as digits as its factorization.

381619982179823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564350976, while the sum is 77.

The spelling of 381619982179823 in words is "three hundred eighty-one trillion, six hundred nineteen billion, nine hundred eighty-two million, one hundred seventy-nine thousand, eight hundred twenty-three".