64213134064 has 20 divisors (see below), whose sum is σ = 124696361680. Its totient is φ = 32033427840.

The previous prime is 64213134061. The next prime is 64213134091. The reversal of 64213134064 is 46043131246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64213134061) 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, 4563957 + ... + 4578004.

It is an arithmetic number, because the mean of its divisors is an integer number (6234818084).

Almost surely, 2^64213134064 is an apocalyptic number.

It is an amenable number.

64213134064 is a deficient number, since it is larger than the sum of its proper divisors (60483227616).

64213134064 is a wasteful number, since it uses less digits than its factorization.

64213134064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142408 (or 9142402 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 64213134064 in words is "sixty-four billion, two hundred thirteen million, one hundred thirty-four thousand, sixty-four".