158578715873 has 2 divisors, whose sum is σ = 158578715874. Its totient is φ = 158578715872.

The previous prime is 158578715863. The next prime is 158578715927. The reversal of 158578715873 is 378517875851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91223933089 + 67354782784 = 302033^2 + 259528^2 .

It is a cyclic number.

It is not a de Polignac number, because 158578715873 - 2³⁰ = 157504974049 is a prime.

It is not a weakly prime, because it can be changed into another prime (158578715803) 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 as a sum of consecutive naturals, namely, 79289357936 + 79289357937.

It is an arithmetic number, because the mean of its divisors is an integer number (79289357937).

Almost surely, 2^158578715873 is an apocalyptic number.

It is an amenable number.

158578715873 is a deficient number, since it is larger than the sum of its proper divisors (1).

158578715873 is an equidigital number, since it uses as much as digits as its factorization.

158578715873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856000, while the sum is 65.

The spelling of 158578715873 in words is "one hundred fifty-eight billion, five hundred seventy-eight million, seven hundred fifteen thousand, eight hundred seventy-three".