42404113643 has 2 divisors, whose sum is σ = 42404113644. Its totient is φ = 42404113642.

The previous prime is 42404113597. The next prime is 42404113649. The reversal of 42404113643 is 34631140424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42404113643 - 2⁶ = 42404113579 is a prime.

It is not a weakly prime, because it can be changed into another prime (42404113649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21202056821 + 21202056822.

It is an arithmetic number, because the mean of its divisors is an integer number (21202056822).

Almost surely, 2^42404113643 is an apocalyptic number.

42404113643 is a deficient number, since it is larger than the sum of its proper divisors (1).

42404113643 is an equidigital number, since it uses as much as digits as its factorization.

42404113643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 42404113643 in words is "forty-two billion, four hundred four million, one hundred thirteen thousand, six hundred forty-three".