4042120993717 has 2 divisors, whose sum is σ = 4042120993718. Its totient is φ = 4042120993716.

The previous prime is 4042120993663. The next prime is 4042120993783. The reversal of 4042120993717 is 7173990212404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3884332498641 + 157788495076 = 1970871^2 + 397226^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042120993717 - 2²⁷ = 4041986775989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042120993817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021060496858 + 2021060496859.

It is an arithmetic number, because the mean of its divisors is an integer number (2021060496859).

Almost surely, 2^{4042120993717} is an apocalyptic number.

It is an amenable number.

4042120993717 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042120993717 is an equidigital number, since it uses as much as digits as its factorization.

4042120993717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 4042120993717 in words is "four trillion, forty-two billion, one hundred twenty million, nine hundred ninety-three thousand, seven hundred seventeen".