64335440484865 has 8 divisors (see below), whose sum is σ = 84220940271168. Its totient is φ = 46789411261680.

The previous prime is 64335440484841. The next prime is 64335440484983. The reversal of 64335440484865 is 56848404453346.

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

It is not a de Polignac number, because 64335440484865 - 2²⁷ = 64335306267137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64335440484797 and 64335440484806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584867640717 + ... + 584867640826.

It is an arithmetic number, because the mean of its divisors is an integer number (10527617533896).

Almost surely, 2^{64335440484865} is an apocalyptic number.

It is an amenable number.

64335440484865 is a deficient number, since it is larger than the sum of its proper divisors (19885499786303).

64335440484865 is a wasteful number, since it uses less digits than its factorization.

64335440484865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169735281559.

The product of its (nonzero) digits is 530841600, while the sum is 64.

The spelling of 64335440484865 in words is "sixty-four trillion, three hundred thirty-five billion, four hundred forty million, four hundred eighty-four thousand, eight hundred sixty-five".