381193333563 has 18 divisors (see below), whose sum is σ = 591250250484. Its totient is φ = 217820484504.

The previous prime is 381193333541. The next prime is 381193333567. The reversal of 381193333563 is 365333391183.

It is a happy number.

It is not a de Polignac number, because 381193333563 - 2⁹ = 381193333051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381193333567) 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 in 17 ways as a sum of consecutive naturals, for example, 7460220 + ... + 7511142.

It is an arithmetic number, because the mean of its divisors is an integer number (32847236138).

Almost surely, 2^381193333563 is an apocalyptic number.

381193333563 is a deficient number, since it is larger than the sum of its proper divisors (210056916921).

381193333563 is an frugal number, since it uses more digits than its factorization.

381193333563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101863 (or 50933 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 48.

Multiplying 381193333563 by its sum of digits (48), we get a square (18297280011024 = 4277532²).

The spelling of 381193333563 in words is "three hundred eighty-one billion, one hundred ninety-three million, three hundred thirty-three thousand, five hundred sixty-three".