9410042338621 has 2 divisors, whose sum is σ = 9410042338622. Its totient is φ = 9410042338620.

The previous prime is 9410042338601. The next prime is 9410042338661. The reversal of 9410042338621 is 1268332400149.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8757160562500 + 652881776121 = 2959250^2 + 808011^2 .

It is a cyclic number.

It is not a de Polignac number, because 9410042338621 - 2⁷ = 9410042338493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9410042338601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4705021169310 + 4705021169311.

It is an arithmetic number, because the mean of its divisors is an integer number (4705021169311).

Almost surely, 2^{9410042338621} is an apocalyptic number.

It is an amenable number.

9410042338621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9410042338621 is an equidigital number, since it uses as much as digits as its factorization.

9410042338621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 9410042338621 in words is "nine trillion, four hundred ten billion, forty-two million, three hundred thirty-eight thousand, six hundred twenty-one".