45856818881 has 4 divisors (see below), whose sum is σ = 45873263700. Its totient is φ = 45840374064.

The previous prime is 45856818863. The next prime is 45856818883. The reversal of 45856818881 is 18881865854.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25286088256 + 20570730625 = 159016^2 + 143425^2 .

It is a cyclic number.

It is not a de Polignac number, because 45856818881 - 2²⁶ = 45789710017 is a prime.

It is a super-2 number, since 2×45856818881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45856818883) 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 3 ways as a sum of consecutive naturals, for example, 8218226 + ... + 8223803.

It is an arithmetic number, because the mean of its divisors is an integer number (11468315925).

Almost surely, 2^45856818881 is an apocalyptic number.

It is an amenable number.

45856818881 is a deficient number, since it is larger than the sum of its proper divisors (16444819).

45856818881 is a wasteful number, since it uses less digits than its factorization.

45856818881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16444818.

The product of its digits is 19660800, while the sum is 62.

The spelling of 45856818881 in words is "forty-five billion, eight hundred fifty-six million, eight hundred eighteen thousand, eight hundred eighty-one".