381842237471 has 4 divisors (see below), whose sum is σ = 388101946344. Its totient is φ = 375582528600.

The previous prime is 381842237459. The next prime is 381842237521. The reversal of 381842237471 is 174732248183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174732248183 = 91253 ⋅1914811.

It is a cyclic number.

It is not a de Polignac number, because 381842237471 - 2¹⁸ = 381841975327 is a prime.

It is a super-3 number, since 3×381842237471³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381842237171) 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 3 ways as a sum of consecutive naturals, for example, 3129854345 + ... + 3129854466.

It is an arithmetic number, because the mean of its divisors is an integer number (97025486586).

Almost surely, 2^381842237471 is an apocalyptic number.

381842237471 is a deficient number, since it is larger than the sum of its proper divisors (6259708873).

381842237471 is an equidigital number, since it uses as much as digits as its factorization.

381842237471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259708872.

The product of its digits is 1806336, while the sum is 50.

The spelling of 381842237471 in words is "three hundred eighty-one billion, eight hundred forty-two million, two hundred thirty-seven thousand, four hundred seventy-one".