381228883633 has 8 divisors (see below), whose sum is σ = 434704428648. Its totient is φ = 331203373824.

The previous prime is 381228883627. The next prime is 381228883639. The reversal of 381228883633 is 336388822183.

It is an interprime number because it is at equal distance from previous prime (381228883627) and next prime (381228883639).

It can be written as a sum of positive squares in 4 ways, for example, as 12843008929 + 368385874704 = 113327^2 + 606948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381228883633 - 2³³ = 372638949041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381228883639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862508566 + ... + 862509007.

It is an arithmetic number, because the mean of its divisors is an integer number (54338053581).

Almost surely, 2^381228883633 is an apocalyptic number.

It is an amenable number.

381228883633 is a deficient number, since it is larger than the sum of its proper divisors (53475545015).

381228883633 is a wasteful number, since it uses less digits than its factorization.

381228883633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725017603.

The product of its digits is 7962624, while the sum is 55.

The spelling of 381228883633 in words is "three hundred eighty-one billion, two hundred twenty-eight million, eight hundred eighty-three thousand, six hundred thirty-three".