42744126171 has 16 divisors (see below), whose sum is σ = 61628580864. Its totient is φ = 26249207424.

The previous prime is 42744126163. The next prime is 42744126181. The reversal of 42744126171 is 17162144724.

It is a happy number.

It is not a de Polignac number, because 42744126171 - 2³ = 42744126163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42744126151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8913775 + ... + 8918568.

It is an arithmetic number, because the mean of its divisors is an integer number (3851786304).

Almost surely, 2^42744126171 is an apocalyptic number.

42744126171 is a deficient number, since it is larger than the sum of its proper divisors (18884454693).

42744126171 is a wasteful number, since it uses less digits than its factorization.

42744126171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17832410.

The product of its digits is 75264, while the sum is 39.

The spelling of 42744126171 in words is "forty-two billion, seven hundred forty-four million, one hundred twenty-six thousand, one hundred seventy-one".