64107205872 has 20 divisors (see below), whose sum is σ = 165610281960. Its totient is φ = 21369068608.

The previous prime is 64107205831. The next prime is 64107205891. The reversal of 64107205872 is 27850270146.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 667783347 + ... + 667783442.

It is an arithmetic number, because the mean of its divisors is an integer number (8280514098).

Almost surely, 2^64107205872 is an apocalyptic number.

It is an amenable number.

64107205872 is an abundant number, since it is smaller than the sum of its proper divisors (101503076088).

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

64107205872 is a wasteful number, since it uses less digits than its factorization.

64107205872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335566800 (or 1335566794 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 64107205872 in words is "sixty-four billion, one hundred seven million, two hundred five thousand, eight hundred seventy-two".