545023824469 has 4 divisors (see below), whose sum is σ = 545068876140. Its totient is φ = 544978772800.

The previous prime is 545023824431. The next prime is 545023824481. The reversal of 545023824469 is 964428320545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 506730422500 + 38293401969 = 711850^2 + 195687^2 .

It is a cyclic number.

It is not a de Polignac number, because 545023824469 - 2¹⁵ = 545023791701 is a prime.

It is a super-2 number, since 2×545023824469² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545023821469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22507684 + ... + 22531885.

It is an arithmetic number, because the mean of its divisors is an integer number (136267219035).

Almost surely, 2^545023824469 is an apocalyptic number.

It is an amenable number.

545023824469 is a deficient number, since it is larger than the sum of its proper divisors (45051671).

545023824469 is a wasteful number, since it uses less digits than its factorization.

545023824469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45051670.

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 545023824469 in words is "five hundred forty-five billion, twenty-three million, eight hundred twenty-four thousand, four hundred sixty-nine".