158973737393 has 2 divisors, whose sum is σ = 158973737394. Its totient is φ = 158973737392.

The previous prime is 158973737327. The next prime is 158973737399. The reversal of 158973737393 is 393737379851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120358343329 + 38615394064 = 346927^2 + 196508^2 .

It is a cyclic number.

It is not a de Polignac number, because 158973737393 - 2³⁰ = 157899995569 is a prime.

It is a super-3 number, since 3×158973737393³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (158973737399) 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, 79486868696 + 79486868697.

It is an arithmetic number, because the mean of its divisors is an integer number (79486868697).

Almost surely, 2^158973737393 is an apocalyptic number.

It is an amenable number.

158973737393 is a deficient number, since it is larger than the sum of its proper divisors (1).

158973737393 is an equidigital number, since it uses as much as digits as its factorization.

158973737393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90016920, while the sum is 65.

The spelling of 158973737393 in words is "one hundred fifty-eight billion, nine hundred seventy-three million, seven hundred thirty-seven thousand, three hundred ninety-three".