64464513792 has 72 divisors (see below), whose sum is σ = 196079579136. Its totient is φ = 18418430976.

The previous prime is 64464513721. The next prime is 64464513797. The reversal of 64464513792 is 29731546446.

It is not an unprimeable number, because it can be changed into a prime (64464513797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5990208 + ... + 6000959.

It is an arithmetic number, because the mean of its divisors is an integer number (2723327488).

Almost surely, 2^64464513792 is an apocalyptic number.

It is an amenable number.

64464513792 is an abundant number, since it is smaller than the sum of its proper divisors (131615065344).

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

64464513792 is a wasteful number, since it uses less digits than its factorization.

64464513792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991193 (or 11991179 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 51.

The spelling of 64464513792 in words is "sixty-four billion, four hundred sixty-four million, five hundred thirteen thousand, seven hundred ninety-two".