8143813371381 has 8 divisors (see below), whose sum is σ = 11089447995264. Its totient is φ = 5313693830880.

The previous prime is 8143813371377. The next prime is 8143813371383. The reversal of 8143813371381 is 1831733183418.

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

It is not a de Polignac number, because 8143813371381 - 2² = 8143813371377 is a prime.

It is a super-2 number, since 2×8143813371381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8143813371383) 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, 28878770680 + ... + 28878770961.

It is an arithmetic number, because the mean of its divisors is an integer number (1386180999408).

Almost surely, 2^{8143813371381} is an apocalyptic number.

It is an amenable number.

8143813371381 is a deficient number, since it is larger than the sum of its proper divisors (2945634623883).

8143813371381 is a wasteful number, since it uses less digits than its factorization.

8143813371381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57757541691.

The product of its digits is 1161216, while the sum is 51.

The spelling of 8143813371381 in words is "eight trillion, one hundred forty-three billion, eight hundred thirteen million, three hundred seventy-one thousand, three hundred eighty-one".