78564755601530 has 16 divisors (see below), whose sum is σ = 154272610999584. Its totient is φ = 28569002036880.

The previous prime is 78564755601463. The next prime is 78564755601539. The reversal of 78564755601530 is 3510655746587.

It is not an unprimeable number, because it can be changed into a prime (78564755601539) 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, 357112525352 + ... + 357112525571.

It is an arithmetic number, because the mean of its divisors is an integer number (9642038187474).

Almost surely, 2^{78564755601530} is an apocalyptic number.

78564755601530 is a deficient number, since it is larger than the sum of its proper divisors (75707855398054).

78564755601530 is a wasteful number, since it uses less digits than its factorization.

78564755601530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714225050941.

The product of its (nonzero) digits is 105840000, while the sum is 62.

The spelling of 78564755601530 in words is "seventy-eight trillion, five hundred sixty-four billion, seven hundred fifty-five million, six hundred one thousand, five hundred thirty".