42138313869 has 32 divisors (see below), whose sum is σ = 59453374464. Its totient is φ = 26494776000.

The previous prime is 42138313853. The next prime is 42138313897. The reversal of 42138313869 is 96831383124.

It is not a de Polignac number, because 42138313869 - 2⁴ = 42138313853 is a prime.

It is a super-2 number, since 2×42138313869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42138318869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1413619 + ... + 1443119.

It is an arithmetic number, because the mean of its divisors is an integer number (1857917952).

Almost surely, 2^42138313869 is an apocalyptic number.

It is an amenable number.

42138313869 is a deficient number, since it is larger than the sum of its proper divisors (17315060595).

42138313869 is a wasteful number, since it uses less digits than its factorization.

42138313869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29817.

The product of its digits is 746496, while the sum is 48.

The spelling of 42138313869 in words is "forty-two billion, one hundred thirty-eight million, three hundred thirteen thousand, eight hundred sixty-nine".