842749612087 has 2 divisors, whose sum is σ = 842749612088. Its totient is φ = 842749612086.

The previous prime is 842749612051. The next prime is 842749612163. The reversal of 842749612087 is 780216947248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842749612087 - 2⁷ = 842749611959 is a prime.

It is a super-3 number, since 3×842749612087³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842749612027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421374806043 + 421374806044.

It is an arithmetic number, because the mean of its divisors is an integer number (421374806044).

Almost surely, 2^842749612087 is an apocalyptic number.

842749612087 is a deficient number, since it is larger than the sum of its proper divisors (1).

842749612087 is an equidigital number, since it uses as much as digits as its factorization.

842749612087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 842749612087 in words is "eight hundred forty-two billion, seven hundred forty-nine million, six hundred twelve thousand, eighty-seven".