28836053381 has 2 divisors, whose sum is σ = 28836053382. Its totient is φ = 28836053380.

The previous prime is 28836053263. The next prime is 28836053383. The reversal of 28836053381 is 18335063882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23205952225 + 5630101156 = 152335^2 + 75034^2 .

It is a cyclic number.

It is not a de Polignac number, because 28836053381 - 2³⁰ = 27762311557 is a prime.

It is a super-2 number, since 2×28836053381² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 28836053383, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28836053383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14418026690 + 14418026691.

It is an arithmetic number, because the mean of its divisors is an integer number (14418026691).

Almost surely, 2^28836053381 is an apocalyptic number.

It is an amenable number.

28836053381 is a deficient number, since it is larger than the sum of its proper divisors (1).

28836053381 is an equidigital number, since it uses as much as digits as its factorization.

28836053381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 28836053381 in words is "twenty-eight billion, eight hundred thirty-six million, fifty-three thousand, three hundred eighty-one".