7728432334868 has 24 divisors (see below), whose sum is σ = 16270383864000. Its totient is φ = 3137859744768.

The previous prime is 7728432334807. The next prime is 7728432334873. The reversal of 7728432334868 is 8684332348277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7263563693 + ... + 7263564756.

It is an arithmetic number, because the mean of its divisors is an integer number (677932661000).

Almost surely, 2^{7728432334868} is an apocalyptic number.

It is an amenable number.

7728432334868 is an abundant number, since it is smaller than the sum of its proper divisors (8541951529132).

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

7728432334868 is a wasteful number, since it uses less digits than its factorization.

7728432334868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14527128479 (or 14527128477 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 65.

The spelling of 7728432334868 in words is "seven trillion, seven hundred twenty-eight billion, four hundred thirty-two million, three hundred thirty-four thousand, eight hundred sixty-eight".