6496547842 has 4 divisors (see below), whose sum is σ = 9744821766. Its totient is φ = 3248273920.

The previous prime is 6496547833. The next prime is 6496547903. The reversal of 6496547842 is 2487456946.

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

It can be written as a sum of positive squares in only one way, i.e., 6387366241 + 109181601 = 79921^2 + 10449^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1624136959 + ... + 1624136962.

Almost surely, 2^6496547842 is an apocalyptic number.

6496547842 is a deficient number, since it is larger than the sum of its proper divisors (3248273924).

6496547842 is a wasteful number, since it uses less digits than its factorization.

6496547842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248273923.

The product of its digits is 11612160, while the sum is 55.

The square root of 6496547842 is about 80601.1652645295. The cubic root of 6496547842 is about 1865.9251296896.

The spelling of 6496547842 in words is "six billion, four hundred ninety-six million, five hundred forty-seven thousand, eight hundred forty-two".