8429138343 has 16 divisors (see below), whose sum is σ = 12753308160. Its totient is φ = 5499862488.

The previous prime is 8429138317. The next prime is 8429138369. The reversal of 8429138343 is 3438319248.

It is an interprime number because it is at equal distance from previous prime (8429138317) and next prime (8429138369).

It is not a de Polignac number, because 8429138343 - 2¹² = 8429134247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8429138243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3319905 + ... + 3322442.

It is an arithmetic number, because the mean of its divisors is an integer number (797081760).

Almost surely, 2^8429138343 is an apocalyptic number.

8429138343 is a deficient number, since it is larger than the sum of its proper divisors (4324169817).

8429138343 is a wasteful number, since it uses less digits than its factorization.

8429138343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642403 (or 6642397 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 8429138343 is about 91810.3389766098. The cubic root of 8429138343 is about 2035.1404856057.

The spelling of 8429138343 in words is "eight billion, four hundred twenty-nine million, one hundred thirty-eight thousand, three hundred forty-three".