5422391931609 has 9 divisors (see below), whose sum is σ = 7832353991839. Its totient is φ = 3614923297200.

The previous prime is 5422391931601. The next prime is 5422391931611. The reversal of 5422391931609 is 9061391932245.

The square root of 5422391931609 is 2328603.

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

5422391931609 is a `hidden beast` number, since 5 + 4 + 2 + 2 + 391 + 93 + 160 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 170778042009 + 5251613889600 = 413253^2 + 2291640^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 5422391931609 - 2³ = 5422391931601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5422391931601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6597709 + ... + 7373909.

Almost surely, 2^{5422391931609} is an apocalyptic number.

5422391931609 is the 2328603-rd square number.

5422391931609 is the 1164302-nd centered octagonal number.

It is an amenable number.

5422391931609 is a deficient number, since it is larger than the sum of its proper divisors (2409962060230).

5422391931609 is an frugal number, since it uses more digits than its factorization.

5422391931609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552408 (or 776204 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 5422391931609 in words is "five trillion, four hundred twenty-two billion, three hundred ninety-one million, nine hundred thirty-one thousand, six hundred nine".