4768579421 has 2 divisors, whose sum is σ = 4768579422. Its totient is φ = 4768579420.

The previous prime is 4768579399. The next prime is 4768579457. The reversal of 4768579421 is 1249758674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4427438521 + 341140900 = 66539^2 + 18470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4768579421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4768573421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2384289710 + 2384289711.

It is an arithmetic number, because the mean of its divisors is an integer number (2384289711).

Almost surely, 2^4768579421 is an apocalyptic number.

It is an amenable number.

4768579421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4768579421 is an equidigital number, since it uses as much as digits as its factorization.

4768579421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 4768579421 is about 69054.9014987350. The cubic root of 4768579421 is about 1683.1765557439.

The spelling of 4768579421 in words is "four billion, seven hundred sixty-eight million, five hundred seventy-nine thousand, four hundred twenty-one".