45545108569 has 9 divisors (see below), whose sum is σ = 46022295549. Its totient is φ = 45072825600.

The previous prime is 45545108549. The next prime is 45545108593. The reversal of 45545108569 is 96580154554.

The square root of 45545108569 is 213413.

It is a perfect power (a square), and thus also a powerful number.

45545108569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1281998025 + 44263110544 = 35805^2 + 210388^2 .

It is not a de Polignac number, because 45545108569 - 2⁵ = 45545108537 is a prime.

It is a super-2 number, since 2×45545108569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45545108509) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21553657 + ... + 21555769.

Almost surely, 2^45545108569 is an apocalyptic number.

45545108569 is the 213413-rd square number.

45545108569 is the 106707-th centered octagonal number.

It is an amenable number.

45545108569 is a deficient number, since it is larger than the sum of its proper divisors (477186980).

45545108569 is an frugal number, since it uses more digits than its factorization.

45545108569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 52.

The spelling of 45545108569 in words is "forty-five billion, five hundred forty-five million, one hundred eight thousand, five hundred sixty-nine".