64071587832 has 128 divisors (see below), whose sum is σ = 190586112000. Its totient is φ = 17567290368.

The previous prime is 64071587819. The next prime is 64071587843. The reversal of 64071587832 is 23878517046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383169 + ... + 524367.

It is an arithmetic number, because the mean of its divisors is an integer number (1488954000).

Almost surely, 2^64071587832 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 64071587832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95293056000).

64071587832 is an abundant number, since it is smaller than the sum of its proper divisors (126514524168).

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

64071587832 is a wasteful number, since it uses less digits than its factorization.

64071587832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141325 (or 141321 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 64071587832 in words is "sixty-four billion, seventy-one million, five hundred eighty-seven thousand, eight hundred thirty-two".