158729381999 has 2 divisors, whose sum is σ = 158729382000. Its totient is φ = 158729381998.

The previous prime is 158729381977. The next prime is 158729382001. The reversal of 158729381999 is 999183927851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158729381999 - 2²⁸ = 158460946543 is a prime.

Together with 158729382001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158729381959) 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, 79364690999 + 79364691000.

It is an arithmetic number, because the mean of its divisors is an integer number (79364691000).

Almost surely, 2^158729381999 is an apocalyptic number.

158729381999 is a deficient number, since it is larger than the sum of its proper divisors (1).

158729381999 is an equidigital number, since it uses as much as digits as its factorization.

158729381999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 71.

The spelling of 158729381999 in words is "one hundred fifty-eight billion, seven hundred twenty-nine million, three hundred eighty-one thousand, nine hundred ninety-nine".