78564541126384 has 20 divisors (see below), whose sum is σ = 152218950278584. Its totient is φ = 39282231377088.

The previous prime is 78564541126219. The next prime is 78564541126417. The reversal of 78564541126384 is 48362114546587.

It is a happy number.

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, 20751139 + ... + 24243325.

Almost surely, 2^{78564541126384} is an apocalyptic number.

It is an amenable number.

78564541126384 is a deficient number, since it is larger than the sum of its proper divisors (73654409152200).

78564541126384 is a wasteful number, since it uses less digits than its factorization.

78564541126384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898272 (or 4898266 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 64.

The spelling of 78564541126384 in words is "seventy-eight trillion, five hundred sixty-four billion, five hundred forty-one million, one hundred twenty-six thousand, three hundred eighty-four".