42055588861 has 32 divisors (see below), whose sum is σ = 51151016448. Its totient is φ = 34066967040.

The previous prime is 42055588831. The next prime is 42055588871. The reversal of 42055588861 is 16888555024.

It is a cyclic number.

It is not a de Polignac number, because 42055588861 - 2⁷ = 42055588733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42055588799 and 42055588808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42055588831) 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, 447775 + ... + 533491.

It is an arithmetic number, because the mean of its divisors is an integer number (1598469264).

Almost surely, 2^42055588861 is an apocalyptic number.

It is an amenable number.

42055588861 is a deficient number, since it is larger than the sum of its proper divisors (9095427587).

42055588861 is a wasteful number, since it uses less digits than its factorization.

42055588861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85861.

The product of its (nonzero) digits is 3072000, while the sum is 52.

The spelling of 42055588861 in words is "forty-two billion, fifty-five million, five hundred eighty-eight thousand, eight hundred sixty-one".