158378919929 has 2 divisors, whose sum is σ = 158378919930. Its totient is φ = 158378919928.

The previous prime is 158378919877. The next prime is 158378919947. The reversal of 158378919929 is 929919873851.

158378919929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116501390329 + 41877529600 = 341323^2 + 204640^2 .

It is a cyclic number.

It is not a de Polignac number, because 158378919929 - 2¹² = 158378915833 is a prime.

It is not a weakly prime, because it can be changed into another prime (158378919329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79189459964 + 79189459965.

It is an arithmetic number, because the mean of its divisors is an integer number (79189459965).

Almost surely, 2^158378919929 is an apocalyptic number.

It is an amenable number.

158378919929 is a deficient number, since it is larger than the sum of its proper divisors (1).

158378919929 is an equidigital number, since it uses as much as digits as its factorization.

158378919929 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 158378919929 in words is "one hundred fifty-eight billion, three hundred seventy-eight million, nine hundred nineteen thousand, nine hundred twenty-nine".