73436528578 has 32 divisors (see below), whose sum is σ = 128846171520. Its totient is φ = 30734363520.

The previous prime is 73436528573. The next prime is 73436528609. The reversal of 73436528578 is 87582563437.

It is not an unprimeable number, because it can be changed into a prime (73436528573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3735238 + ... + 3754846.

It is an arithmetic number, because the mean of its divisors is an integer number (4026442860).

Almost surely, 2^73436528578 is an apocalyptic number.

73436528578 is a deficient number, since it is larger than the sum of its proper divisors (55409642942).

73436528578 is a wasteful number, since it uses less digits than its factorization.

73436528578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25882.

The product of its digits is 33868800, while the sum is 58.

The spelling of 73436528578 in words is "seventy-three billion, four hundred thirty-six million, five hundred twenty-eight thousand, five hundred seventy-eight".