28838145241 has 2 divisors, whose sum is σ = 28838145242. Its totient is φ = 28838145240.

The previous prime is 28838145233. The next prime is 28838145283. The reversal of 28838145241 is 14254183882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28528561216 + 309584025 = 168904^2 + 17595^2 .

It is a cyclic number.

It is not a de Polignac number, because 28838145241 - 2³ = 28838145233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28838145191 and 28838145200.

It is not a weakly prime, because it can be changed into another prime (28838145221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14419072620 + 14419072621.

It is an arithmetic number, because the mean of its divisors is an integer number (14419072621).

Almost surely, 2^28838145241 is an apocalyptic number.

It is an amenable number.

28838145241 is a deficient number, since it is larger than the sum of its proper divisors (1).

28838145241 is an equidigital number, since it uses as much as digits as its factorization.

28838145241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 491520, while the sum is 46.

The spelling of 28838145241 in words is "twenty-eight billion, eight hundred thirty-eight million, one hundred forty-five thousand, two hundred forty-one".