7431980243 has 2 divisors, whose sum is σ = 7431980244. Its totient is φ = 7431980242.

The previous prime is 7431980239. The next prime is 7431980291. The reversal of 7431980243 is 3420891347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7431980243 - 2² = 7431980239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7431980243.

It is not a weakly prime, because it can be changed into another prime (7431980443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3715990121 + 3715990122.

It is an arithmetic number, because the mean of its divisors is an integer number (3715990122).

Almost surely, 2^7431980243 is an apocalyptic number.

7431980243 is a deficient number, since it is larger than the sum of its proper divisors (1).

7431980243 is an equidigital number, since it uses as much as digits as its factorization.

7431980243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 7431980243 is about 86208.9336611931. The cubic root of 7431980243 is about 1951.4983218559.

The spelling of 7431980243 in words is "seven billion, four hundred thirty-one million, nine hundred eighty thousand, two hundred forty-three".