64866384896 has 22 divisors (see below), whose sum is σ = 129669425760. Its totient is φ = 32433191936.

The previous prime is 64866384889. The next prime is 64866384907. The reversal of 64866384896 is 69848366846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31672016 + ... + 31674063.

Almost surely, 2^64866384896 is an apocalyptic number.

It is an amenable number.

64866384896 is a deficient number, since it is larger than the sum of its proper divisors (64803040864).

64866384896 is an equidigital number, since it uses as much as digits as its factorization.

64866384896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63346099 (or 63346081 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 68.

The spelling of 64866384896 in words is "sixty-four billion, eight hundred sixty-six million, three hundred eighty-four thousand, eight hundred ninety-six".