64753920000 has 1440 divisors, whose sum is σ = 295359704640. Its totient is φ = 13271040000.

The previous prime is 64753919981. The next prime is 64753920001. The reversal of 64753920000 is 2935746.

64753920000 is a `hidden beast` number, since 647 + 5 + 3 + 9 + 2 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64753920001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 887039964 + ... + 887040036.

It is an arithmetic number, because the mean of its divisors is an integer number (205110906).

Almost surely, 2^64753920000 is an apocalyptic number.

64753920000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64753920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147679852320).

64753920000 is an abundant number, since it is smaller than the sum of its proper divisors (230605784640).

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

64753920000 is a wasteful number, since it uses less digits than its factorization.

64753920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 64753920000 in words is "sixty-four billion, seven hundred fifty-three million, nine hundred twenty thousand".