158809381719 has 16 divisors (see below), whose sum is σ = 213668267904. Its totient is φ = 104915844000.

The previous prime is 158809381697. The next prime is 158809381739. The reversal of 158809381719 is 917183908851.

It is a happy number.

It is not a de Polignac number, because 158809381719 - 2²⁹ = 158272510807 is a prime.

It is a super-2 number, since 2×158809381719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158809381739) 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 15 ways as a sum of consecutive naturals, for example, 363057 + ... + 670394.

It is an arithmetic number, because the mean of its divisors is an integer number (13354266744).

Almost surely, 2^158809381719 is an apocalyptic number.

158809381719 is a deficient number, since it is larger than the sum of its proper divisors (54858886185).

158809381719 is a wasteful number, since it uses less digits than its factorization.

158809381719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033918.

The product of its (nonzero) digits is 4354560, while the sum is 60.

The spelling of 158809381719 in words is "one hundred fifty-eight billion, eight hundred nine million, three hundred eighty-one thousand, seven hundred nineteen".