45818231645 has 16 divisors (see below), whose sum is σ = 57845149488. Its totient is φ = 34794063360.

The previous prime is 45818231629. The next prime is 45818231647. The reversal of 45818231645 is 54613281854.

It can be written as a sum of positive squares in 8 ways, for example, as 747366244 + 45070865401 = 27338^2 + 212299^2 .

It is not a de Polignac number, because 45818231645 - 2⁴ = 45818231629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45818231645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45818231647) 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 15 ways as a sum of consecutive naturals, for example, 3012734 + ... + 3027903.

It is an arithmetic number, because the mean of its divisors is an integer number (3615321843).

Almost surely, 2^45818231645 is an apocalyptic number.

It is an amenable number.

45818231645 is a deficient number, since it is larger than the sum of its proper divisors (12026917843).

45818231645 is a wasteful number, since it uses less digits than its factorization.

45818231645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040720.

The product of its digits is 921600, while the sum is 47.

The spelling of 45818231645 in words is "forty-five billion, eight hundred eighteen million, two hundred thirty-one thousand, six hundred forty-five".