6543675442 has 8 divisors (see below), whose sum is σ = 9816783516. Its totient is φ = 3271414272.

The previous prime is 6543675403. The next prime is 6543675527. The reversal of 6543675442 is 2445763456.

It can be written as a sum of positive squares in 2 ways, for example, as 6531710761 + 11964681 = 80819^2 + 3459^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6543675392 and 6543675401.

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, 192043 + ... + 223534.

Almost surely, 2^6543675442 is an apocalyptic number.

6543675442 is a deficient number, since it is larger than the sum of its proper divisors (3273108074).

6543675442 is a wasteful number, since it uses less digits than its factorization.

6543675442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423452.

The product of its digits is 2419200, while the sum is 46.

The square root of 6543675442 is about 80892.9875947229. The cubic root of 6543675442 is about 1870.4262273018.

The spelling of 6543675442 in words is "six billion, five hundred forty-three million, six hundred seventy-five thousand, four hundred forty-two".