64312265633 has 24 divisors (see below), whose sum is σ = 86414135904. Its totient is φ = 47165596800.

The previous prime is 64312265623. The next prime is 64312265663. The reversal of 64312265633 is 33656221346.

It is not a de Polignac number, because 64312265633 - 2⁸ = 64312265377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64312265623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3500183 + ... + 3518508.

It is an arithmetic number, because the mean of its divisors is an integer number (3600588996).

Almost surely, 2^64312265633 is an apocalyptic number.

It is an amenable number.

64312265633 is a deficient number, since it is larger than the sum of its proper divisors (22101870271).

64312265633 is a wasteful number, since it uses less digits than its factorization.

64312265633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018733 (or 7018726 counting only the distinct ones).

The product of its digits is 466560, while the sum is 41.

Adding to 64312265633 its reverse (33656221346), we get a palindrome (97968486979).

The spelling of 64312265633 in words is "sixty-four billion, three hundred twelve million, two hundred sixty-five thousand, six hundred thirty-three".