64989876096 has 384 divisors, whose sum is σ = 210430080000. Its totient is φ = 19721871360.

The previous prime is 64989876073. The next prime is 64989876121. The reversal of 64989876096 is 69067898946.

64989876096 is a `hidden beast` number, since 6 + 4 + 9 + 8 + 9 + 8 + 7 + 609 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 30961255 + ... + 30963353.

It is an arithmetic number, because the mean of its divisors is an integer number (547995000).

Almost surely, 2^64989876096 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 64989876096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105215040000).

64989876096 is an abundant number, since it is smaller than the sum of its proper divisors (145440203904).

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

64989876096 is a wasteful number, since it uses less digits than its factorization.

64989876096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187 (or 2152 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 64989876096 in words is "sixty-four billion, nine hundred eighty-nine million, eight hundred seventy-six thousand, ninety-six".