42170810079 has 32 divisors (see below), whose sum is σ = 59994475200. Its totient is φ = 26256384000.

The previous prime is 42170810039. The next prime is 42170810083. The reversal of 42170810079 is 97001807124.

It is not a de Polignac number, because 42170810079 - 2⁷ = 42170809951 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42170810009) 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 31 ways as a sum of consecutive naturals, for example, 10036179 + ... + 10040379.

It is an arithmetic number, because the mean of its divisors is an integer number (1874827350).

Almost surely, 2^42170810079 is an apocalyptic number.

42170810079 is a deficient number, since it is larger than the sum of its proper divisors (17823665121).

42170810079 is a wasteful number, since it uses less digits than its factorization.

42170810079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 42170810079 in words is "forty-two billion, one hundred seventy million, eight hundred ten thousand, seventy-nine".