6542834345 has 4 divisors (see below), whose sum is σ = 7851401220. Its totient is φ = 5234267472.

The previous prime is 6542834321. The next prime is 6542834351. The reversal of 6542834345 is 5434382456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1497999616 + 5044834729 = 38704^2 + 71027^2 .

It is a cyclic number.

It is not a de Polignac number, because 6542834345 - 2²² = 6538640041 is a prime.

It is a super-2 number, since 2×6542834345² = 85617362532223158050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6542834296 and 6542834305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654283430 + ... + 654283439.

It is an arithmetic number, because the mean of its divisors is an integer number (1962850305).

Almost surely, 2^6542834345 is an apocalyptic number.

It is an amenable number.

6542834345 is a deficient number, since it is larger than the sum of its proper divisors (1308566875).

6542834345 is a wasteful number, since it uses less digits than its factorization.

6542834345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308566874.

The product of its digits is 1382400, while the sum is 44.

The square root of 6542834345 is about 80887.7886024831. The cubic root of 6542834345 is about 1870.3460849154.

The spelling of 6542834345 in words is "six billion, five hundred forty-two million, eight hundred thirty-four thousand, three hundred forty-five".