42738009475 has 72 divisors (see below), whose sum is σ = 65898469728. Its totient is φ = 27347443200.

The previous prime is 42738009473. The next prime is 42738009481. The reversal of 42738009475 is 57490083724.

It is a happy number.

It is not a de Polignac number, because 42738009475 - 2¹ = 42738009473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (42738009473) 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 71 ways as a sum of consecutive naturals, for example, 1136677 + ... + 1173673.

It is an arithmetic number, because the mean of its divisors is an integer number (915256524).

Almost surely, 2^42738009475 is an apocalyptic number.

42738009475 is a deficient number, since it is larger than the sum of its proper divisors (23160460253).

42738009475 is a wasteful number, since it uses less digits than its factorization.

42738009475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37085 (or 37073 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 42738009475 in words is "forty-two billion, seven hundred thirty-eight million, nine thousand, four hundred seventy-five".