6451320202 has 8 divisors (see below), whose sum is σ = 9677642436. Its totient is φ = 3225439392.

The previous prime is 6451320181. The next prime is 6451320233. The reversal of 6451320202 is 2020231546.

It can be written as a sum of positive squares in 2 ways, for example, as 6422579881 + 28740321 = 80141^2 + 5361^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 71013 + ... + 133960.

Almost surely, 2^6451320202 is an apocalyptic number.

6451320202 is a deficient number, since it is larger than the sum of its proper divisors (3226322234).

6451320202 is a wasteful number, since it uses less digits than its factorization.

6451320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220712.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6451320202 is about 80320.1108191467. The cubic root of 6451320202 is about 1861.5849790124.

Adding to 6451320202 its reverse (2020231546), we get a palindrome (8471551748).

The spelling of 6451320202 in words is "six billion, four hundred fifty-one million, three hundred twenty thousand, two hundred two".