64640336710 has 8 divisors (see below), whose sum is σ = 116352606096. Its totient is φ = 25856134680.

The previous prime is 64640336707. The next prime is 64640336713. The reversal of 64640336710 is 1763304646.

It is a happy number.

64640336710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64640336707) and next prime (64640336713).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64640336713) 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, 3232016826 + ... + 3232016845.

It is an arithmetic number, because the mean of its divisors is an integer number (14544075762).

Almost surely, 2^64640336710 is an apocalyptic number.

64640336710 is a deficient number, since it is larger than the sum of its proper divisors (51712269386).

64640336710 is a wasteful number, since it uses less digits than its factorization.

64640336710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6464033678.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 64640336710 in words is "sixty-four billion, six hundred forty million, three hundred thirty-six thousand, seven hundred ten".