64791230080 has 128 divisors (see below), whose sum is σ = 160280156160. Its totient is φ = 25018982400.

The previous prime is 64791230071. The next prime is 64791230083. The reversal of 64791230080 is 8003219746.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (64791230083) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8547252 + ... + 8554828.

It is an arithmetic number, because the mean of its divisors is an integer number (1252188720).

Almost surely, 2^64791230080 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 64791230080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80140078080).

64791230080 is an abundant number, since it is smaller than the sum of its proper divisors (95488926080).

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

64791230080 is a wasteful number, since it uses less digits than its factorization.

64791230080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8058 (or 8046 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 64791230080 in words is "sixty-four billion, seven hundred ninety-one million, two hundred thirty thousand, eighty".