42198603827 has 2 divisors, whose sum is σ = 42198603828. Its totient is φ = 42198603826.

The previous prime is 42198603809. The next prime is 42198603829. The reversal of 42198603827 is 72830689124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42198603827 - 2¹⁴ = 42198587443 is a prime.

Together with 42198603829, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42198603829) 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, 21099301913 + 21099301914.

It is an arithmetic number, because the mean of its divisors is an integer number (21099301914).

Almost surely, 2^42198603827 is an apocalyptic number.

42198603827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42198603827 is an equidigital number, since it uses as much as digits as its factorization.

42198603827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 42198603827 in words is "forty-two billion, one hundred ninety-eight million, six hundred three thousand, eight hundred twenty-seven".