42745908119 has 2 divisors, whose sum is σ = 42745908120. Its totient is φ = 42745908118.

The previous prime is 42745908109. The next prime is 42745908133. The reversal of 42745908119 is 91180954724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42745908119 - 2³² = 38450940823 is a prime.

It is a super-2 number, since 2×42745908119² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42745908109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21372954059 + 21372954060.

It is an arithmetic number, because the mean of its divisors is an integer number (21372954060).

Almost surely, 2^42745908119 is an apocalyptic number.

42745908119 is a deficient number, since it is larger than the sum of its proper divisors (1).

42745908119 is an equidigital number, since it uses as much as digits as its factorization.

42745908119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 42745908119 in words is "forty-two billion, seven hundred forty-five million, nine hundred eight thousand, one hundred nineteen".