5404071809 has 4 divisors (see below), whose sum is σ = 5721958404. Its totient is φ = 5086185216.

The previous prime is 5404071779. The next prime is 5404071847. The reversal of 5404071809 is 9081704045.

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 4391050225 + 1013021584 = 66265^2 + 31828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5404071809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5404071859) 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, 158943272 + ... + 158943305.

It is an arithmetic number, because the mean of its divisors is an integer number (1430489601).

Almost surely, 2^5404071809 is an apocalyptic number.

It is an amenable number.

5404071809 is a deficient number, since it is larger than the sum of its proper divisors (317886595).

5404071809 is a wasteful number, since it uses less digits than its factorization.

5404071809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317886594.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 5404071809 is about 73512.3922138302. The cubic root of 5404071809 is about 1754.8514966483.

The spelling of 5404071809 in words is "five billion, four hundred four million, seventy-one thousand, eight hundred nine".