64464902008 has 64 divisors (see below), whose sum is σ = 134670816000. Its totient is φ = 28728483840.

The previous prime is 64464901979. The next prime is 64464902009. The reversal of 64464902008 is 80020946446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64464902009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425310 + ... + 1469842.

It is an arithmetic number, because the mean of its divisors is an integer number (2104231500).

Almost surely, 2^64464902008 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 64464902008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67335408000).

64464902008 is an abundant number, since it is smaller than the sum of its proper divisors (70205913992).

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

64464902008 is a wasteful number, since it uses less digits than its factorization.

64464902008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45032 (or 45028 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 64464902008 in words is "sixty-four billion, four hundred sixty-four million, nine hundred two thousand, eight".