4545454545073 has 16 divisors (see below), whose sum is σ = 4932796364496. Its totient is φ = 4163521582080.

The previous prime is 4545454545067. The next prime is 4545454545133. The reversal of 4545454545073 is 3705454545454.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 746413058304 + 3799041486769 = 863952^2 + 1949113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4545454545073 is a prime.

It is a super-2 number, since 2×4545454545073² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4545454545173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3983715 + ... + 4996087.

It is an arithmetic number, because the mean of its divisors is an integer number (308299772781).

Almost surely, 2^{4545454545073} is an apocalyptic number.

It is an amenable number.

4545454545073 is a deficient number, since it is larger than the sum of its proper divisors (387341819423).

4545454545073 is a wasteful number, since it uses less digits than its factorization.

4545454545073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015044.

The product of its (nonzero) digits is 67200000, while the sum is 55.

The spelling of 4545454545073 in words is "four trillion, five hundred forty-five billion, four hundred fifty-four million, five hundred forty-five thousand, seventy-three".