42014421191 has 2 divisors, whose sum is σ = 42014421192. Its totient is φ = 42014421190.

The previous prime is 42014421187. The next prime is 42014421203. The reversal of 42014421191 is 19112441024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42014421191 - 2² = 42014421187 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42014421151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007210595 + 21007210596.

It is an arithmetic number, because the mean of its divisors is an integer number (21007210596).

Almost surely, 2^42014421191 is an apocalyptic number.

42014421191 is a deficient number, since it is larger than the sum of its proper divisors (1).

42014421191 is an equidigital number, since it uses as much as digits as its factorization.

42014421191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 42014421191 in words is "forty-two billion, fourteen million, four hundred twenty-one thousand, one hundred ninety-one".