28857633341 has 2 divisors, whose sum is σ = 28857633342. Its totient is φ = 28857633340.

The previous prime is 28857633323. The next prime is 28857633419. The reversal of 28857633341 is 14333675882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25968033316 + 2889600025 = 161146^2 + 53755^2 .

It is a cyclic number.

It is not a de Polignac number, because 28857633341 - 2¹⁸ = 28857371197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28857633341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28857633041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14428816670 + 14428816671.

It is an arithmetic number, because the mean of its divisors is an integer number (14428816671).

Almost surely, 2^28857633341 is an apocalyptic number.

It is an amenable number.

28857633341 is a deficient number, since it is larger than the sum of its proper divisors (1).

28857633341 is an equidigital number, since it uses as much as digits as its factorization.

28857633341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The spelling of 28857633341 in words is "twenty-eight billion, eight hundred fifty-seven million, six hundred thirty-three thousand, three hundred forty-one".