381868363 has 2 divisors, whose sum is σ = 381868364. Its totient is φ = 381868362.

The previous prime is 381868351. The next prime is 381868367. The reversal of 381868363 is 363868183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381868363 - 2⁹ = 381867851 is a prime.

It is not a weakly prime, because it can be changed into another prime (381868367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190934181 + 190934182.

It is an arithmetic number, because the mean of its divisors is an integer number (190934182).

Almost surely, 2^381868363 is an apocalyptic number.

381868363 is a deficient number, since it is larger than the sum of its proper divisors (1).

381868363 is an equidigital number, since it uses as much as digits as its factorization.

381868363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 46.

The square root of 381868363 is about 19541.4524281078. The cubic root of 381868363 is about 725.5007958095.

The spelling of 381868363 in words is "three hundred eighty-one million, eight hundred sixty-eight thousand, three hundred sixty-three".