381957352219 has 2 divisors, whose sum is σ = 381957352220. Its totient is φ = 381957352218.

The previous prime is 381957352199. The next prime is 381957352243. The reversal of 381957352219 is 912253759183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381957352219 - 2²⁷ = 381823134491 is a prime.

It is a super-2 number, since 2×381957352219² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381957352219.

It is not a weakly prime, because it can be changed into another prime (381957352019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190978676109 + 190978676110.

It is an arithmetic number, because the mean of its divisors is an integer number (190978676110).

Almost surely, 2^381957352219 is an apocalyptic number.

381957352219 is a deficient number, since it is larger than the sum of its proper divisors (1).

381957352219 is an equidigital number, since it uses as much as digits as its factorization.

381957352219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 55.

The spelling of 381957352219 in words is "three hundred eighty-one billion, nine hundred fifty-seven million, three hundred fifty-two thousand, two hundred nineteen".