45844590881 has 4 divisors (see below), whose sum is σ = 45846492564. Its totient is φ = 45842689200.

The previous prime is 45844590853. The next prime is 45844590929. The reversal of 45844590881 is 18809544854.

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 22494000400 + 23350590481 = 149980^2 + 152809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45844590881 is a prime.

It is a super-2 number, since 2×45844590881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45844593881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914210 + ... + 963051.

It is an arithmetic number, because the mean of its divisors is an integer number (11461623141).

Almost surely, 2^45844590881 is an apocalyptic number.

It is an amenable number.

45844590881 is a deficient number, since it is larger than the sum of its proper divisors (1901683).

45844590881 is a wasteful number, since it uses less digits than its factorization.

45844590881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901682.

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 45844590881 in words is "forty-five billion, eight hundred forty-four million, five hundred ninety thousand, eight hundred eighty-one".