158746433449 has 4 divisors (see below), whose sum is σ = 168084458964. Its totient is φ = 149408407936.

The previous prime is 158746433437. The next prime is 158746433453. The reversal of 158746433449 is 944334647851.

It is a happy number.

158746433449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99036090000 + 59710343449 = 314700^2 + 244357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158746433449 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158746433393 and 158746433402.

It is not an unprimeable number, because it can be changed into a prime (158746430449) 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 in 3 ways as a sum of consecutive naturals, for example, 4669012732 + ... + 4669012765.

It is an arithmetic number, because the mean of its divisors is an integer number (42021114741).

Almost surely, 2^158746433449 is an apocalyptic number.

It is an amenable number.

158746433449 is a deficient number, since it is larger than the sum of its proper divisors (9338025515).

158746433449 is an equidigital number, since it uses as much as digits as its factorization.

158746433449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338025514.

The product of its digits is 34836480, while the sum is 58.

The spelling of 158746433449 in words is "one hundred fifty-eight billion, seven hundred forty-six million, four hundred thirty-three thousand, four hundred forty-nine".