6496776845 has 8 divisors (see below), whose sum is σ = 8395834776. Its totient is φ = 4797619776.

The previous prime is 6496776841. The next prime is 6496776859. The reversal of 6496776845 is 5486776946.

It can be written as a sum of positive squares in 4 ways, for example, as 1542447076 + 4954329769 = 39274^2 + 70387^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6496776845 - 2² = 6496776841 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6496776841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49975142 + ... + 49975271.

It is an arithmetic number, because the mean of its divisors is an integer number (1049479347).

Almost surely, 2^6496776845 is an apocalyptic number.

6496776845 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6496776845 is a deficient number, since it is larger than the sum of its proper divisors (1899057931).

6496776845 is a wasteful number, since it uses less digits than its factorization.

6496776845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99950431.

The product of its digits is 60963840, while the sum is 62.

The square root of 6496776845 is about 80602.5858456166. The cubic root of 6496776845 is about 1865.9470540225.

The spelling of 6496776845 in words is "six billion, four hundred ninety-six million, seven hundred seventy-six thousand, eight hundred forty-five".