42423373969 has 2 divisors, whose sum is σ = 42423373970. Its totient is φ = 42423373968.

The previous prime is 42423373963. The next prime is 42423373973. The reversal of 42423373969 is 96937332424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32928820369 + 9494553600 = 181463^2 + 97440^2 .

It is a cyclic number.

It is not a de Polignac number, because 42423373969 - 2³¹ = 40275890321 is a prime.

It is a super-2 number, since 2×42423373969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42423373963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21211686984 + 21211686985.

It is an arithmetic number, because the mean of its divisors is an integer number (21211686985).

Almost surely, 2^42423373969 is an apocalyptic number.

It is an amenable number.

42423373969 is a deficient number, since it is larger than the sum of its proper divisors (1).

42423373969 is an equidigital number, since it uses as much as digits as its factorization.

42423373969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 52.

The spelling of 42423373969 in words is "forty-two billion, four hundred twenty-three million, three hundred seventy-three thousand, nine hundred sixty-nine".