7421943329 has 2 divisors, whose sum is σ = 7421943330. Its totient is φ = 7421943328.

The previous prime is 7421943313. The next prime is 7421943413. The reversal of 7421943329 is 9233491247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6952224400 + 469718929 = 83380^2 + 21673^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421943329 - 2⁴ = 7421943313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7421943329.

It is not a weakly prime, because it can be changed into another prime (7421943029) 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 as a sum of consecutive naturals, namely, 3710971664 + 3710971665.

It is an arithmetic number, because the mean of its divisors is an integer number (3710971665).

Almost surely, 2^7421943329 is an apocalyptic number.

It is an amenable number.

7421943329 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421943329 is an equidigital number, since it uses as much as digits as its factorization.

7421943329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 7421943329 is about 86150.7012681847. The cubic root of 7421943329 is about 1950.6194244309.

The spelling of 7421943329 in words is "seven billion, four hundred twenty-one million, nine hundred forty-three thousand, three hundred twenty-nine".