381182312447 has 8 divisors (see below), whose sum is σ = 382956849600. Its totient is φ = 379409272704.

The previous prime is 381182312419. The next prime is 381182312501. The reversal of 381182312447 is 744213281183.

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 381182312447 - 2¹⁴ = 381182296063 is a prime.

It is a super-2 number, since 2×381182312447² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381182312398 and 381182312407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381182302447) 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, 137579 + ... + 883907.

It is an arithmetic number, because the mean of its divisors is an integer number (47869606200).

Almost surely, 2^381182312447 is an apocalyptic number.

381182312447 is a deficient number, since it is larger than the sum of its proper divisors (1774537153).

381182312447 is a wasteful number, since it uses less digits than its factorization.

381182312447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748705.

The product of its digits is 258048, while the sum is 44.

The spelling of 381182312447 in words is "three hundred eighty-one billion, one hundred eighty-two million, three hundred twelve thousand, four hundred forty-seven".