381838465671751 has 8 divisors (see below), whose sum is σ = 416787864768000. Its totient is φ = 346928535126840.

The previous prime is 381838465671727. The next prime is 381838465671791. The reversal of 381838465671751 is 157176564838183.

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 381838465671751 - 2⁹ = 381838465671239 is a prime.

It is a super-2 number, since 2×381838465671751² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381838465671791) 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, 9867117601 + ... + 9867156298.

It is an arithmetic number, because the mean of its divisors is an integer number (52098483096000).

Almost surely, 2^{381838465671751} is an apocalyptic number.

381838465671751 is a deficient number, since it is larger than the sum of its proper divisors (34949399096249).

381838465671751 is a wasteful number, since it uses less digits than its factorization.

381838465671751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19734275669.

The product of its digits is 812851200, while the sum is 73.

The spelling of 381838465671751 in words is "three hundred eighty-one trillion, eight hundred thirty-eight billion, four hundred sixty-five million, six hundred seventy-one thousand, seven hundred fifty-one".