42816932081 has 32 divisors (see below), whose sum is σ = 53680693248. Its totient is φ = 33177651840.

The previous prime is 42816932063. The next prime is 42816932111. The reversal of 42816932081 is 18023961824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42816932081 - 2¹⁸ = 42816669937 is a prime.

It is a super-2 number, since 2×42816932081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42816932381) 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 31 ways as a sum of consecutive naturals, for example, 27323360 + ... + 27324926.

It is an arithmetic number, because the mean of its divisors is an integer number (1677521664).

Almost surely, 2^42816932081 is an apocalyptic number.

It is an amenable number.

42816932081 is a deficient number, since it is larger than the sum of its proper divisors (10863761167).

42816932081 is a wasteful number, since it uses less digits than its factorization.

42816932081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 42816932081 in words is "forty-two billion, eight hundred sixteen million, nine hundred thirty-two thousand, eighty-one".