7421075705 has 8 divisors (see below), whose sum is σ = 9429131592. Its totient is φ = 5587633408.

The previous prime is 7421075687. The next prime is 7421075707. The reversal of 7421075705 is 5075701247.

It can be written as a sum of positive squares in 4 ways, for example, as 125865961 + 7295209744 = 11219^2 + 85412^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7421075705 - 2¹⁶ = 7421010169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7421075707) 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 in 7 ways as a sum of consecutive naturals, for example, 43653302 + ... + 43653471.

It is an arithmetic number, because the mean of its divisors is an integer number (1178641449).

Almost surely, 2^7421075705 is an apocalyptic number.

It is an amenable number.

7421075705 is a deficient number, since it is larger than the sum of its proper divisors (2008055887).

7421075705 is a wasteful number, since it uses less digits than its factorization.

7421075705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87306795.

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 7421075705 is about 86145.6656193450. The cubic root of 7421075705 is about 1950.5434124349.

The spelling of 7421075705 in words is "seven billion, four hundred twenty-one million, seventy-five thousand, seven hundred five".