6544545469 has 16 divisors (see below), whose sum is σ = 8173249920. Its totient is φ = 5091010560.

The previous prime is 6544545451. The next prime is 6544545473. The reversal of 6544545469 is 9645454456.

It is a cyclic number.

It is not a de Polignac number, because 6544545469 - 2⁷ = 6544545341 is a prime.

It is a super-2 number, since 2×6544545469² = 85662150791616859922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6544545169) 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, 26004 + ... + 117325.

It is an arithmetic number, because the mean of its divisors is an integer number (510828120).

Almost surely, 2^6544545469 is an apocalyptic number.

It is an amenable number.

6544545469 is a deficient number, since it is larger than the sum of its proper divisors (1628704451).

6544545469 is a wasteful number, since it uses less digits than its factorization.

6544545469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143940.

The product of its digits is 10368000, while the sum is 52.

The square root of 6544545469 is about 80898.3650576450. The cubic root of 6544545469 is about 1870.5091190048.

The spelling of 6544545469 in words is "six billion, five hundred forty-four million, five hundred forty-five thousand, four hundred sixty-nine".