7480391209 has 2 divisors, whose sum is σ = 7480391210. Its totient is φ = 7480391208.

The previous prime is 7480391161. The next prime is 7480391231. The reversal of 7480391209 is 9021930847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7144475625 + 335915584 = 84525^2 + 18328^2 .

It is a cyclic number.

It is not a de Polignac number, because 7480391209 - 2¹³ = 7480383017 is a prime.

It is not a weakly prime, because it can be changed into another prime (7480391309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740195604 + 3740195605.

It is an arithmetic number, because the mean of its divisors is an integer number (3740195605).

Almost surely, 2^7480391209 is an apocalyptic number.

It is an amenable number.

7480391209 is a deficient number, since it is larger than the sum of its proper divisors (1).

7480391209 is an equidigital number, since it uses as much as digits as its factorization.

7480391209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 7480391209 is about 86489.2548759671. The cubic root of 7480391209 is about 1955.7264245785.

The spelling of 7480391209 in words is "seven billion, four hundred eighty million, three hundred ninety-one thousand, two hundred nine".