64758750264 has 640 divisors, whose sum is σ = 211801497600. Its totient is φ = 18341406720.

The previous prime is 64758750257. The next prime is 64758750299. The reversal of 64758750264 is 46205785746.

It is a happy number.

64758750264 is a `hidden beast` number, since 6 + 4 + 7 + 587 + 50 + 2 + 6 + 4 = 666.

64758750264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 64758750264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 819730977 + ... + 819731055.

It is an arithmetic number, because the mean of its divisors is an integer number (330939840).

Almost surely, 2^64758750264 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 64758750264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105900748800).

64758750264 is an abundant number, since it is smaller than the sum of its proper divisors (147042747336).

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

64758750264 is a wasteful number, since it uses less digits than its factorization.

64758750264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 64758750264 in words is "sixty-four billion, seven hundred fifty-eight million, seven hundred fifty thousand, two hundred sixty-four".