6496456385 has 8 divisors (see below), whose sum is σ = 7923547176. Its totient is φ = 5111965440.

The previous prime is 6496456363. The next prime is 6496456409. The reversal of 6496456385 is 5836546946.

It can be written as a sum of positive squares in 4 ways, for example, as 733976464 + 5762479921 = 27092^2 + 75911^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-6496456385 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6496456385.

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 7 ways as a sum of consecutive naturals, for example, 10649624 + ... + 10650233.

It is an arithmetic number, because the mean of its divisors is an integer number (990443397).

Almost surely, 2^6496456385 is an apocalyptic number.

It is an amenable number.

6496456385 is a deficient number, since it is larger than the sum of its proper divisors (1427090791).

6496456385 is a wasteful number, since it uses less digits than its factorization.

6496456385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21299923.

The product of its digits is 18662400, while the sum is 56.

The square root of 6496456385 is about 80600.5979196184. The cubic root of 6496456385 is about 1865.9163736179.

The spelling of 6496456385 in words is "six billion, four hundred ninety-six million, four hundred fifty-six thousand, three hundred eighty-five".