158862243791 has 2 divisors, whose sum is σ = 158862243792. Its totient is φ = 158862243790.

The previous prime is 158862243721. The next prime is 158862243811. The reversal of 158862243791 is 197342268851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158862243791 - 2³⁰ = 157788501967 is a prime.

It is a super-2 number, since 2×158862243791² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158862243721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79431121895 + 79431121896.

It is an arithmetic number, because the mean of its divisors is an integer number (79431121896).

Almost surely, 2^158862243791 is an apocalyptic number.

158862243791 is a deficient number, since it is larger than the sum of its proper divisors (1).

158862243791 is an equidigital number, since it uses as much as digits as its factorization.

158862243791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 56.

The spelling of 158862243791 in words is "one hundred fifty-eight billion, eight hundred sixty-two million, two hundred forty-three thousand, seven hundred ninety-one".