45404389985 has 16 divisors (see below), whose sum is σ = 55634853456. Its totient is φ = 35564387328.

The previous prime is 45404389963. The next prime is 45404390023. The reversal of 45404389985 is 58998340454.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4205133409 + 41199256576 = 64847^2 + 202976^2 .

It is a cyclic number.

It is not a de Polignac number, because 45404389985 - 2⁸ = 45404389729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403994 + ... + 504003.

It is an arithmetic number, because the mean of its divisors is an integer number (3477178341).

Almost surely, 2^45404389985 is an apocalyptic number.

It is an amenable number.

45404389985 is a deficient number, since it is larger than the sum of its proper divisors (10230463471).

45404389985 is a wasteful number, since it uses less digits than its factorization.

45404389985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908212.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 45404389985 in words is "forty-five billion, four hundred four million, three hundred eighty-nine thousand, nine hundred eighty-five".