158861888987 has 2 divisors, whose sum is σ = 158861888988. Its totient is φ = 158861888986.

The previous prime is 158861888947. The next prime is 158861889023. The reversal of 158861888987 is 789888168851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158861888987 - 2¹⁶ = 158861823451 is a prime.

It is not a weakly prime, because it can be changed into another prime (158861888947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79430944493 + 79430944494.

It is an arithmetic number, because the mean of its divisors is an integer number (79430944494).

Almost surely, 2^158861888987 is an apocalyptic number.

158861888987 is a deficient number, since it is larger than the sum of its proper divisors (1).

158861888987 is an equidigital number, since it uses as much as digits as its factorization.

158861888987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 495452160, while the sum is 77.

The spelling of 158861888987 in words is "one hundred fifty-eight billion, eight hundred sixty-one million, eight hundred eighty-eight thousand, nine hundred eighty-seven".