7800240353 has 4 divisors (see below), whose sum is σ = 7880655300. Its totient is φ = 7719825408.

The previous prime is 7800240347. The next prime is 7800240361. The reversal of 7800240353 is 3530420087.

It is a happy number.

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 1805145169 + 5995095184 = 42487^2 + 77428^2 .

It is a cyclic number.

It is not a de Polignac number, because 7800240353 - 2⁴ = 7800240337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7800240323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40207328 + ... + 40207521.

It is an arithmetic number, because the mean of its divisors is an integer number (1970163825).

Almost surely, 2^7800240353 is an apocalyptic number.

It is an amenable number.

7800240353 is a deficient number, since it is larger than the sum of its proper divisors (80414947).

7800240353 is an equidigital number, since it uses as much as digits as its factorization.

7800240353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80414946.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 7800240353 is about 88318.9693837060. The cubic root of 7800240353 is about 1983.2128528247.

The spelling of 7800240353 in words is "seven billion, eight hundred million, two hundred forty thousand, three hundred fifty-three".