5445144545 has 32 divisors (see below), whose sum is σ = 7424697600. Its totient is φ = 3811256064.

The previous prime is 5445144449. The next prime is 5445144547. The reversal of 5445144545 is 5454415445.

It is a cyclic number.

It is not a de Polignac number, because 5445144545 - 2²² = 5440950241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5445144547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20399 + ... + 106331.

It is an arithmetic number, because the mean of its divisors is an integer number (232021800).

Almost surely, 2^5445144545 is an apocalyptic number.

It is an amenable number.

5445144545 is a deficient number, since it is larger than the sum of its proper divisors (1979553055).

5445144545 is a wasteful number, since it uses less digits than its factorization.

5445144545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86009.

The product of its digits is 640000, while the sum is 41.

The square root of 5445144545 is about 73791.2226826470. Note that the first 3 decimals coincide. The cubic root of 5445144545 is about 1759.2860983108.

The spelling of 5445144545 in words is "five billion, four hundred forty-five million, one hundred forty-four thousand, five hundred forty-five".