64734006912 has 256 divisors, whose sum is σ = 179640115200. Its totient is φ = 20640595968.

The previous prime is 64734006899. The next prime is 64734006913. The reversal of 64734006912 is 21960043746.

It is not an unprimeable number, because it can be changed into a prime (64734006913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180317389 + ... + 180317747.

It is an arithmetic number, because the mean of its divisors is an integer number (701719200).

Almost surely, 2^64734006912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64734006912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89820057600).

64734006912 is an abundant number, since it is smaller than the sum of its proper divisors (114906108288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64734006912 is a wasteful number, since it uses less digits than its factorization.

64734006912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 64734006912 in words is "sixty-four billion, seven hundred thirty-four million, six thousand, nine hundred twelve".