42738009489 has 12 divisors (see below), whose sum is σ = 70551634816. Its totient is φ = 24421719672.

The previous prime is 42738009481. The next prime is 42738009529. The reversal of 42738009489 is 98490083724.

It is not a de Polignac number, because 42738009489 - 2³ = 42738009481 is a prime.

It is a super-2 number, since 2×42738009489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42738009481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339190489 + ... + 339190614.

Almost surely, 2^42738009489 is an apocalyptic number.

It is an amenable number.

42738009489 is a deficient number, since it is larger than the sum of its proper divisors (27813625327).

42738009489 is a wasteful number, since it uses less digits than its factorization.

42738009489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678381116 (or 678381113 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 42738009489 in words is "forty-two billion, seven hundred thirty-eight million, nine thousand, four hundred eighty-nine".