28356903014441 has 2 divisors, whose sum is σ = 28356903014442. Its totient is φ = 28356903014440.

The previous prime is 28356903014393. The next prime is 28356903014477. The reversal of 28356903014441 is 14441030965382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16476617539600 + 11880285474841 = 4059140^2 + 3446779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28356903014441 is a prime.

It is a super-2 number, since 2×28356903014441² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28356903014441.

It is not a weakly prime, because it can be changed into another prime (28356903019441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14178451507220 + 14178451507221.

It is an arithmetic number, because the mean of its divisors is an integer number (14178451507221).

Almost surely, 2^{28356903014441} is an apocalyptic number.

It is an amenable number.

28356903014441 is a deficient number, since it is larger than the sum of its proper divisors (1).

28356903014441 is an equidigital number, since it uses as much as digits as its factorization.

28356903014441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 28356903014441 in words is "twenty-eight trillion, three hundred fifty-six billion, nine hundred three million, fourteen thousand, four hundred forty-one".