64850883760 has 240 divisors, whose sum is σ = 166257930240. Its totient is φ = 23511720960.

The previous prime is 64850883749. The next prime is 64850883821. The reversal of 64850883760 is 6738805846.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307350055 + ... + 307350265.

It is an arithmetic number, because the mean of its divisors is an integer number (692741376).

Almost surely, 2^64850883760 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 64850883760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83128965120).

64850883760 is an abundant number, since it is smaller than the sum of its proper divisors (101407046480).

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

64850883760 is a wasteful number, since it uses less digits than its factorization.

64850883760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 64850883760 in words is "sixty-four billion, eight hundred fifty million, eight hundred eighty-three thousand, seven hundred sixty".