45441446545 has 24 divisors (see below), whose sum is σ = 60487617960. Its totient is φ = 32745081600.

The previous prime is 45441446543. The next prime is 45441446549. The reversal of 45441446545 is 54564414454.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2328738049 + 43112708496 = 48257^2 + 207636^2 .

It is not a de Polignac number, because 45441446545 - 2¹ = 45441446543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45441446495 and 45441446504.

It is not an unprimeable number, because it can be changed into a prime (45441446543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278596 + ... + 410485.

It is an arithmetic number, because the mean of its divisors is an integer number (2520317415).

Almost surely, 2^45441446545 is an apocalyptic number.

It is an amenable number.

45441446545 is a deficient number, since it is larger than the sum of its proper divisors (15046171415).

45441446545 is a wasteful number, since it uses less digits than its factorization.

45441446545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689217 (or 689206 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 46.

The spelling of 45441446545 in words is "forty-five billion, four hundred forty-one million, four hundred forty-six thousand, five hundred forty-five".