158613517849 has 2 divisors, whose sum is σ = 158613517850. Its totient is φ = 158613517848.

The previous prime is 158613517841. The next prime is 158613517877. The reversal of 158613517849 is 948715316851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95477910025 + 63135607824 = 308995^2 + 251268^2 .

It is a cyclic number.

It is not a de Polignac number, because 158613517849 - 2³ = 158613517841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158613517793 and 158613517802.

It is not a weakly prime, because it can be changed into another prime (158613517841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79306758924 + 79306758925.

It is an arithmetic number, because the mean of its divisors is an integer number (79306758925).

Almost surely, 2^158613517849 is an apocalyptic number.

It is an amenable number.

158613517849 is a deficient number, since it is larger than the sum of its proper divisors (1).

158613517849 is an equidigital number, since it uses as much as digits as its factorization.

158613517849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 58.

The spelling of 158613517849 in words is "one hundred fifty-eight billion, six hundred thirteen million, five hundred seventeen thousand, eight hundred forty-nine".