42431270163 has 16 divisors (see below), whose sum is σ = 58533232800. Its totient is φ = 27308655360.

The previous prime is 42431270149. The next prime is 42431270179. The reversal of 42431270163 is 36107213424.

It is not a de Polignac number, because 42431270163 - 2⁵ = 42431270131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42431271163) 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 15 ways as a sum of consecutive naturals, for example, 793743 + ... + 845511.

It is an arithmetic number, because the mean of its divisors is an integer number (3658327050).

Almost surely, 2^42431270163 is an apocalyptic number.

42431270163 is a deficient number, since it is larger than the sum of its proper divisors (16101962637).

42431270163 is a wasteful number, since it uses less digits than its factorization.

42431270163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61222.

The product of its (nonzero) digits is 24192, while the sum is 33.

Adding to 42431270163 its reverse (36107213424), we get a palindrome (78538483587).

It can be divided in two parts, 4243 and 1270163, that added together give a triangular number (1274406 = T₁₅₉₆).

The spelling of 42431270163 in words is "forty-two billion, four hundred thirty-one million, two hundred seventy thousand, one hundred sixty-three".