64518463875324 has 48 divisors (see below), whose sum is σ = 159664665888000. Its totient is φ = 20207295204096.

The previous prime is 64518463875287. The next prime is 64518463875403. The reversal of 64518463875324 is 42357836481546.

It is a super-2 number, since 2×64518463875324² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263873614 + ... + 264118005.

It is an arithmetic number, because the mean of its divisors is an integer number (3326347206000).

Almost surely, 2^{64518463875324} is an apocalyptic number.

It is an amenable number.

64518463875324 is an abundant number, since it is smaller than the sum of its proper divisors (95146202012676).

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

64518463875324 is a wasteful number, since it uses less digits than its factorization.

64518463875324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527992242 (or 527992240 counting only the distinct ones).

The product of its digits is 464486400, while the sum is 66.

The spelling of 64518463875324 in words is "sixty-four trillion, five hundred eighteen billion, four hundred sixty-three million, eight hundred seventy-five thousand, three hundred twenty-four".