64765652244 has 48 divisors (see below), whose sum is σ = 153788031936. Its totient is φ = 21208262400.

The previous prime is 64765652239. The next prime is 64765652249. The reversal of 64765652244 is 44225656746.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64765652239) and next prime (64765652249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64765652249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539104 + ... + 648200.

It is an arithmetic number, because the mean of its divisors is an integer number (3203917332).

Almost surely, 2^64765652244 is an apocalyptic number.

It is an amenable number.

64765652244 is an abundant number, since it is smaller than the sum of its proper divisors (89022379692).

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

64765652244 is a wasteful number, since it uses less digits than its factorization.

64765652244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109976 (or 109974 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 51.

The spelling of 64765652244 in words is "sixty-four billion, seven hundred sixty-five million, six hundred fifty-two thousand, two hundred forty-four".