42413005991 has 2 divisors, whose sum is σ = 42413005992. Its totient is φ = 42413005990.

The previous prime is 42413005969. The next prime is 42413006099. The reversal of 42413005991 is 19950031424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42413005991 - 2⁶ = 42413005927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42413005961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21206502995 + 21206502996.

It is an arithmetic number, because the mean of its divisors is an integer number (21206502996).

Almost surely, 2^42413005991 is an apocalyptic number.

42413005991 is a deficient number, since it is larger than the sum of its proper divisors (1).

42413005991 is an equidigital number, since it uses as much as digits as its factorization.

42413005991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 42413005991 in words is "forty-two billion, four hundred thirteen million, five thousand, nine hundred ninety-one".