86742120042293 has 2 divisors, whose sum is σ = 86742120042294. Its totient is φ = 86742120042292.

The previous prime is 86742120042269. The next prime is 86742120042301. The reversal of 86742120042293 is 39224002124768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86611649545444 + 130470496849 = 9306538^2 + 361207^2 .

It is a cyclic number.

It is not a de Polignac number, because 86742120042293 - 2²⁶ = 86742052933429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86742120042223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43371060021146 + 43371060021147.

It is an arithmetic number, because the mean of its divisors is an integer number (43371060021147).

Almost surely, 2^{86742120042293} is an apocalyptic number.

It is an amenable number.

86742120042293 is a deficient number, since it is larger than the sum of its proper divisors (1).

86742120042293 is an equidigital number, since it uses as much as digits as its factorization.

86742120042293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 86742120042293 in words is "eighty-six trillion, seven hundred forty-two billion, one hundred twenty million, forty-two thousand, two hundred ninety-three".