7421056429 has 2 divisors, whose sum is σ = 7421056430. Its totient is φ = 7421056428.

The previous prime is 7421056387. The next prime is 7421056453. The reversal of 7421056429 is 9246501247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4570030404 + 2851026025 = 67602^2 + 53395^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421056429 - 2¹⁵ = 7421023661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7421056391 and 7421056400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7421156429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710528214 + 3710528215.

It is an arithmetic number, because the mean of its divisors is an integer number (3710528215).

Almost surely, 2^7421056429 is an apocalyptic number.

It is an amenable number.

7421056429 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421056429 is an equidigital number, since it uses as much as digits as its factorization.

7421056429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 7421056429 is about 86145.5537390062. The cubic root of 7421056429 is about 1950.5417236094.

The spelling of 7421056429 in words is "seven billion, four hundred twenty-one million, fifty-six thousand, four hundred twenty-nine".