64004030857272 has 32 divisors (see below), whose sum is σ = 174556447793280. Its totient is φ = 19395160865760.

The previous prime is 64004030857267. The next prime is 64004030857279. The reversal of 64004030857272 is 27275803040046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64004030857279) 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 7 ways as a sum of consecutive naturals, for example, 121219755148 + ... + 121219755675.

It is an arithmetic number, because the mean of its divisors is an integer number (5454888993540).

Almost surely, 2^{64004030857272} is an apocalyptic number.

It is an amenable number.

64004030857272 is an abundant number, since it is smaller than the sum of its proper divisors (110552416936008).

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

64004030857272 is a wasteful number, since it uses less digits than its factorization.

64004030857272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242439510843 (or 242439510839 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 64004030857272 in words is "sixty-four trillion, four billion, thirty million, eight hundred fifty-seven thousand, two hundred seventy-two".