64884437330 has 16 divisors (see below), whose sum is σ = 116970853464. Its totient is φ = 25914026880.

The previous prime is 64884437249. The next prime is 64884437333. The reversal of 64884437330 is 3373448846.

It can be written as a sum of positive squares in 4 ways, for example, as 44871525241 + 20012912089 = 211829^2 + 141467^2 .

It is not an unprimeable number, because it can be changed into a prime (64884437333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4961651 + ... + 4974710.

Almost surely, 2^64884437330 is an apocalyptic number.

64884437330 is a deficient number, since it is larger than the sum of its proper divisors (52086416134).

64884437330 is a wasteful number, since it uses less digits than its factorization.

64884437330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937021.

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 64884437330 in words is "sixty-four billion, eight hundred eighty-four million, four hundred thirty-seven thousand, three hundred thirty".