8645134340 has 24 divisors (see below), whose sum is σ = 18157292160. Its totient is φ = 3457575648.

The previous prime is 8645134327. The next prime is 8645134343. The reversal of 8645134340 is 434315468.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8645134294 and 8645134303.

It is not an unprimeable number, because it can be changed into a prime (8645134343) 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, 142709 + ... + 194051.

It is an arithmetic number, because the mean of its divisors is an integer number (756553840).

Almost surely, 2^8645134340 is an apocalyptic number.

It is an amenable number.

8645134340 is an abundant number, since it is smaller than the sum of its proper divisors (9512157820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8645134340 is a wasteful number, since it uses less digits than its factorization.

8645134340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59771 (or 59769 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 8645134340 is about 92979.2145589540. The cubic root of 8645134340 is about 2052.3775183906.

The spelling of 8645134340 in words is "eight billion, six hundred forty-five million, one hundred thirty-four thousand, three hundred forty".