7663075421 has 16 divisors (see below), whose sum is σ = 8137281600. Its totient is φ = 7196128128.

The previous prime is 7663075417. The next prime is 7663075463. The reversal of 7663075421 is 1245703667.

It is a cyclic number.

It is not a de Polignac number, because 7663075421 - 2² = 7663075417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663075471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1997321 + ... + 2001153.

It is an arithmetic number, because the mean of its divisors is an integer number (508580100).

Almost surely, 2^7663075421 is an apocalyptic number.

It is an amenable number.

7663075421 is a deficient number, since it is larger than the sum of its proper divisors (474206179).

7663075421 is a wasteful number, since it uses less digits than its factorization.

7663075421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 7663075421 is about 87538.9937170859. The cubic root of 7663075421 is about 1971.5193018432.

The spelling of 7663075421 in words is "seven billion, six hundred sixty-three million, seventy-five thousand, four hundred twenty-one".