381421893219 has 8 divisors (see below), whose sum is σ = 508609016400. Its totient is φ = 254258016096.

The previous prime is 381421893199. The next prime is 381421893227. The reversal of 381421893219 is 912398124183.

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

It is not a de Polignac number, because 381421893219 - 2⁵ = 381421893187 is a prime.

It is a super-2 number, since 2×381421893219² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (381421813219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5773192 + ... + 5838885.

It is an arithmetic number, because the mean of its divisors is an integer number (63576127050).

Almost surely, 2^381421893219 is an apocalyptic number.

381421893219 is a deficient number, since it is larger than the sum of its proper divisors (127187123181).

381421893219 is a wasteful number, since it uses less digits than its factorization.

381421893219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623029.

The product of its digits is 746496, while the sum is 51.

The spelling of 381421893219 in words is "three hundred eighty-one billion, four hundred twenty-one million, eight hundred ninety-three thousand, two hundred nineteen".