42196117693 has 2 divisors, whose sum is σ = 42196117694. Its totient is φ = 42196117692.

The previous prime is 42196117661. The next prime is 42196117721. The reversal of 42196117693 is 39671169124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28372707364 + 13823410329 = 168442^2 + 117573^2 .

It is a cyclic number.

It is not a de Polignac number, because 42196117693 - 2⁵ = 42196117661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42196117603) 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, 21098058846 + 21098058847.

It is an arithmetic number, because the mean of its divisors is an integer number (21098058847).

Almost surely, 2^42196117693 is an apocalyptic number.

It is an amenable number.

42196117693 is a deficient number, since it is larger than the sum of its proper divisors (1).

42196117693 is an equidigital number, since it uses as much as digits as its factorization.

42196117693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The spelling of 42196117693 in words is "forty-two billion, one hundred ninety-six million, one hundred seventeen thousand, six hundred ninety-three".