45609845405 has 18 divisors (see below), whose sum is σ = 55187703438. Its totient is φ = 36186449920.

The previous prime is 45609845371. The next prime is 45609845431. The reversal of 45609845405 is 50454890654.

45609845405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 9 ways, for example, as 7981992964 + 37627852441 = 89342^2 + 193979^2 .

It is not a de Polignac number, because 45609845405 - 2²⁴ = 45593068189 is a prime.

It is a super-2 number, since 2×45609845405² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 71153885 + ... + 71154525.

Almost surely, 2^45609845405 is an apocalyptic number.

It is an amenable number.

45609845405 is a deficient number, since it is larger than the sum of its proper divisors (9577858033).

45609845405 is an frugal number, since it uses more digits than its factorization.

45609845405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 45609845405 in words is "forty-five billion, six hundred nine million, eight hundred forty-five thousand, four hundred five".