7048431809 has 4 divisors (see below), whose sum is σ = 7238930004. Its totient is φ = 6857933616.

The previous prime is 7048431799. The next prime is 7048431833. The reversal of 7048431809 is 9081348407.

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 6052840000 + 995591809 = 77800^2 + 31553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7048431809 is a prime.

It is a super-2 number, since 2×7048431809² = 99360781932246024962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7048431809.

It is not an unprimeable number, because it can be changed into a prime (7048431869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95249042 + ... + 95249115.

It is an arithmetic number, because the mean of its divisors is an integer number (1809732501).

Almost surely, 2^7048431809 is an apocalyptic number.

It is an amenable number.

7048431809 is a deficient number, since it is larger than the sum of its proper divisors (190498195).

7048431809 is a wasteful number, since it uses less digits than its factorization.

7048431809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190498194.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 7048431809 is about 83954.9391578602. The cubic root of 7048431809 is about 1917.3327954508.

The spelling of 7048431809 in words is "seven billion, forty-eight million, four hundred thirty-one thousand, eight hundred nine".