5651323865 has 16 divisors (see below), whose sum is σ = 7403792256. Its totient is φ = 4106889600.

The previous prime is 5651323861. The next prime is 5651323879. The reversal of 5651323865 is 5683231565.

It is not a de Polignac number, because 5651323865 - 2² = 5651323861 is a prime.

It is a super-2 number, since 2×5651323865² = 63874922854237076450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5651323861) 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 15 ways as a sum of consecutive naturals, for example, 33764 + ... + 111546.

It is an arithmetic number, because the mean of its divisors is an integer number (462737016).

Almost surely, 2^5651323865 is an apocalyptic number.

5651323865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5651323865 is a deficient number, since it is larger than the sum of its proper divisors (1752468391).

5651323865 is a wasteful number, since it uses less digits than its factorization.

5651323865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79120.

The product of its digits is 648000, while the sum is 44.

The square root of 5651323865 is about 75175.2875950601. The cubic root of 5651323865 is about 1781.2165929674.

The spelling of 5651323865 in words is "five billion, six hundred fifty-one million, three hundred twenty-three thousand, eight hundred sixty-five".