64513636307 has 16 divisors (see below), whose sum is σ = 68236058880. Its totient is φ = 60872673312.

The previous prime is 64513636217. The next prime is 64513636351. The reversal of 64513636307 is 70363631546.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64513636307 - 2¹⁰ = 64513635283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64513636807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512408 + ... + 625770.

It is an arithmetic number, because the mean of its divisors is an integer number (4264753680).

Almost surely, 2^64513636307 is an apocalyptic number.

64513636307 is a deficient number, since it is larger than the sum of its proper divisors (3722422573).

64513636307 is a wasteful number, since it uses less digits than its factorization.

64513636307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113722.

The product of its (nonzero) digits is 816480, while the sum is 44.

The spelling of 64513636307 in words is "sixty-four billion, five hundred thirteen million, six hundred thirty-six thousand, three hundred seven".