64335440484863 has 4 divisors (see below), whose sum is σ = 64335517570608. Its totient is φ = 64335363399120.

The previous prime is 64335440484841. The next prime is 64335440484983. The reversal of 64335440484863 is 36848404453346.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64335440484863 - 2³⁰ = 64334366743039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64335440484796 and 64335440484805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64335440483863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37277123 + ... + 38964788.

It is an arithmetic number, because the mean of its divisors is an integer number (16083879392652).

Almost surely, 2^{64335440484863} is an apocalyptic number.

64335440484863 is a deficient number, since it is larger than the sum of its proper divisors (77085745).

64335440484863 is an equidigital number, since it uses as much as digits as its factorization.

64335440484863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77085744.

The product of its (nonzero) digits is 318504960, while the sum is 62.

The spelling of 64335440484863 in words is "sixty-four trillion, three hundred thirty-five billion, four hundred forty million, four hundred eighty-four thousand, eight hundred sixty-three".