4828135621 has 2 divisors, whose sum is σ = 4828135622. Its totient is φ = 4828135620.

The previous prime is 4828135591. The next prime is 4828135633. The reversal of 4828135621 is 1265318284.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4767902500 + 60233121 = 69050^2 + 7761^2 .

It is a cyclic number.

It is not a de Polignac number, because 4828135621 - 2¹⁷ = 4828004549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4828135721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2414067810 + 2414067811.

It is an arithmetic number, because the mean of its divisors is an integer number (2414067811).

Almost surely, 2^4828135621 is an apocalyptic number.

It is an amenable number.

4828135621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4828135621 is an equidigital number, since it uses as much as digits as its factorization.

4828135621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 40.

The square root of 4828135621 is about 69484.7869752797. The cubic root of 4828135621 is about 1690.1548147801.

The spelling of 4828135621 in words is "four billion, eight hundred twenty-eight million, one hundred thirty-five thousand, six hundred twenty-one".