42091887675205 has 8 divisors (see below), whose sum is σ = 52706363697792. Its totient is φ = 32209444481808.

The previous prime is 42091887675181. The next prime is 42091887675209. The reversal of 42091887675205 is 50257678819024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42091887675205 - 2¹⁵ = 42091887642437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42091887675209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183008207169 + ... + 183008207398.

It is an arithmetic number, because the mean of its divisors is an integer number (6588295462224).

Almost surely, 2^{42091887675205} is an apocalyptic number.

It is an amenable number.

42091887675205 is a deficient number, since it is larger than the sum of its proper divisors (10614476022587).

42091887675205 is a wasteful number, since it uses less digits than its factorization.

42091887675205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366016414595.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 42091887675205 in words is "forty-two trillion, ninety-one billion, eight hundred eighty-seven million, six hundred seventy-five thousand, two hundred five".