78530568140564 has 24 divisors (see below), whose sum is σ = 137879488356288. Its totient is φ = 39136604526720.

The previous prime is 78530568140551. The next prime is 78530568140567. The reversal of 78530568140564 is 46504186503587.

78530568140564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 78530568140497 and 78530568140506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78530568140567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20203142 + ... + 23774525.

It is an arithmetic number, because the mean of its divisors is an integer number (5744978681512).

Almost surely, 2^{78530568140564} is an apocalyptic number.

It is an amenable number.

78530568140564 is a deficient number, since it is larger than the sum of its proper divisors (59348920215724).

78530568140564 is a wasteful number, since it uses less digits than its factorization.

78530568140564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43979135 (or 43979133 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 62.

The spelling of 78530568140564 in words is "seventy-eight trillion, five hundred thirty billion, five hundred sixty-eight million, one hundred forty thousand, five hundred sixty-four".