7421429537 has 2 divisors, whose sum is σ = 7421429538. Its totient is φ = 7421429536.

The previous prime is 7421429503. The next prime is 7421429599. The reversal of 7421429537 is 7359241247.

7421429537 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5140316416 + 2281113121 = 71696^2 + 47761^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421429537 - 2¹⁸ = 7421167393 is a prime.

It is not a weakly prime, because it can be changed into another prime (7421429137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710714768 + 3710714769.

It is an arithmetic number, because the mean of its divisors is an integer number (3710714769).

Almost surely, 2^7421429537 is an apocalyptic number.

It is an amenable number.

7421429537 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421429537 is an equidigital number, since it uses as much as digits as its factorization.

7421429537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The square root of 7421429537 is about 86147.7192791545. The cubic root of 7421429537 is about 1950.5744121505.

The spelling of 7421429537 in words is "seven billion, four hundred twenty-one million, four hundred twenty-nine thousand, five hundred thirty-seven".