64718282752 has 56 divisors (see below), whose sum is σ = 136241028000. Its totient is φ = 30655954944.

The previous prime is 64718282747. The next prime is 64718282789. The reversal of 64718282752 is 25728281746.

It is a super-2 number, since 2×64718282752² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64718282752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52252 + ... + 363547.

It is an arithmetic number, because the mean of its divisors is an integer number (2432875500).

Almost surely, 2^64718282752 is an apocalyptic number.

It is an amenable number.

64718282752 is an abundant number, since it is smaller than the sum of its proper divisors (71522745248).

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

64718282752 is an equidigital number, since it uses as much as digits as its factorization.

64718282752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415844 (or 415820 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 52.

The spelling of 64718282752 in words is "sixty-four billion, seven hundred eighteen million, two hundred eighty-two thousand, seven hundred fifty-two".