6405734134 has 4 divisors (see below), whose sum is σ = 9608601204. Its totient is φ = 3202867066.

The previous prime is 6405734131. The next prime is 6405734161. The reversal of 6405734134 is 4314375046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4314375046 = 2 ⋅2157187523.

It is a junction number, because it is equal to n+sod(n) for n = 6405734093 and 6405734102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405734131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601433532 + ... + 1601433535.

It is an arithmetic number, because the mean of its divisors is an integer number (2402150301).

Almost surely, 2^6405734134 is an apocalyptic number.

6405734134 is a deficient number, since it is larger than the sum of its proper divisors (3202867070).

6405734134 is a wasteful number, since it uses less digits than its factorization.

6405734134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202867069.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 6405734134 is about 80035.8303136789. The cubic root of 6405734134 is about 1857.1898573515.

The spelling of 6405734134 in words is "six billion, four hundred five million, seven hundred thirty-four thousand, one hundred thirty-four".