158783593949 has 2 divisors, whose sum is σ = 158783593950. Its totient is φ = 158783593948.

The previous prime is 158783593909. The next prime is 158783593979. The reversal of 158783593949 is 949395387851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135142993924 + 23640600025 = 367618^2 + 153755^2 .

It is a cyclic number.

It is not a de Polignac number, because 158783593949 - 2¹⁶ = 158783528413 is a prime.

It is a super-3 number, since 3×158783593949³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158783593909) 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 as a sum of consecutive naturals, namely, 79391796974 + 79391796975.

It is an arithmetic number, because the mean of its divisors is an integer number (79391796975).

Almost surely, 2^158783593949 is an apocalyptic number.

It is an amenable number.

158783593949 is a deficient number, since it is larger than the sum of its proper divisors (1).

158783593949 is an equidigital number, since it uses as much as digits as its factorization.

158783593949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 293932800, while the sum is 71.

The spelling of 158783593949 in words is "one hundred fifty-eight billion, seven hundred eighty-three million, five hundred ninety-three thousand, nine hundred forty-nine".