64315751456 has 48 divisors (see below), whose sum is σ = 139274378208. Its totient is φ = 29234413120.

The previous prime is 64315751419. The next prime is 64315751459. The reversal of 64315751456 is 65415751346.

It is a happy number.

It is a super-2 number, since 2×64315751456² (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 64315751456.

It is not an unprimeable number, because it can be changed into a prime (64315751459) 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, 712430 + ... + 797613.

It is an arithmetic number, because the mean of its divisors is an integer number (2901549546).

Almost surely, 2^64315751456 is an apocalyptic number.

It is an amenable number.

64315751456 is an abundant number, since it is smaller than the sum of its proper divisors (74958626752).

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

64315751456 is a wasteful number, since it uses less digits than its factorization.

64315751456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510086 (or 1510056 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 47.

The spelling of 64315751456 in words is "sixty-four billion, three hundred fifteen million, seven hundred fifty-one thousand, four hundred fifty-six".