6495490945946 has 4 divisors (see below), whose sum is σ = 9743236418922. Its totient is φ = 3247745472972.

The previous prime is 6495490945921. The next prime is 6495490945963.

6495490945946 is nontrivially palindromic in base 10.

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., 4886243935225 + 1609247010721 = 2210485^2 + 1268561^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1623872736485 + ... + 1623872736488.

Almost surely, 2^{6495490945946} is an apocalyptic number.

6495490945946 is a deficient number, since it is larger than the sum of its proper divisors (3247745472976).

6495490945946 is a wasteful number, since it uses less digits than its factorization.

6495490945946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247745472975.

The product of its (nonzero) digits is 1511654400, while the sum is 74.

The spelling of 6495490945946 in words is "six trillion, four hundred ninety-five billion, four hundred ninety million, nine hundred forty-five thousand, nine hundred forty-six".