45045242045 has 4 divisors (see below), whose sum is σ = 54054290460. Its totient is φ = 36036193632.

The previous prime is 45045242017. The next prime is 45045242107. The reversal of 45045242045 is 54024254054.

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 25567690201 + 19477551844 = 159899^2 + 139562^2 .

It is a cyclic number.

It is not a de Polignac number, because 45045242045 - 2⁸ = 45045241789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45045241996 and 45045242014.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4504524200 + ... + 4504524209.

It is an arithmetic number, because the mean of its divisors is an integer number (13513572615).

Almost surely, 2^45045242045 is an apocalyptic number.

It is an amenable number.

45045242045 is a deficient number, since it is larger than the sum of its proper divisors (9009048415).

45045242045 is an equidigital number, since it uses as much as digits as its factorization.

45045242045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9009048414.

The product of its (nonzero) digits is 128000, while the sum is 35.

Adding to 45045242045 its reverse (54024254054), we get a palindrome (99069496099).

The spelling of 45045242045 in words is "forty-five billion, forty-five million, two hundred forty-two thousand, forty-five".