64800387072 has 208 divisors, whose sum is σ = 202088352000. Its totient is φ = 20462616576.

The previous prime is 64800386999. The next prime is 64800387079. The reversal of 64800387072 is 27078300846.

It is a happy number.

64800387072 is a `hidden beast` number, since 6 + 480 + 0 + 38 + 70 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64800387079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2085829 + ... + 2116667.

Almost surely, 2^64800387072 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 64800387072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101044176000).

64800387072 is an abundant number, since it is smaller than the sum of its proper divisors (137287964928).

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

64800387072 is a wasteful number, since it uses less digits than its factorization.

64800387072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30891 (or 30863 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 64800387072 in words is "sixty-four billion, eight hundred million, three hundred eighty-seven thousand, seventy-two".