64860468824 has 16 divisors (see below), whose sum is σ = 121685237520. Its totient is φ = 32411072160.

The previous prime is 64860468817. The next prime is 64860468851. The reversal of 64860468824 is 42886406846.

It is a super-3 number, since 3×64860468824³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64860468824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2380892 + ... + 2407979.

It is an arithmetic number, because the mean of its divisors is an integer number (7605327345).

Almost surely, 2^64860468824 is an apocalyptic number.

It is an amenable number.

64860468824 is a deficient number, since it is larger than the sum of its proper divisors (56824768696).

64860468824 is a wasteful number, since it uses less digits than its factorization.

64860468824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790570 (or 4790566 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 56.

The spelling of 64860468824 in words is "sixty-four billion, eight hundred sixty million, four hundred sixty-eight thousand, eight hundred twenty-four".