42871010091 has 64 divisors (see below), whose sum is σ = 74612192256. Its totient is φ = 21248409600.

The previous prime is 42871010059. The next prime is 42871010101. The reversal of 42871010091 is 19001017824.

It is not a de Polignac number, because 42871010091 - 2⁵ = 42871010059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42871010891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2967676 + ... + 2982086.

It is an arithmetic number, because the mean of its divisors is an integer number (1165815504).

Almost surely, 2^42871010091 is an apocalyptic number.

42871010091 is a deficient number, since it is larger than the sum of its proper divisors (31741182165).

42871010091 is a wasteful number, since it uses less digits than its factorization.

42871010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15092.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 42871010091 in words is "forty-two billion, eight hundred seventy-one million, ten thousand, ninety-one".