28078722341 has 2 divisors, whose sum is σ = 28078722342. Its totient is φ = 28078722340.

The previous prime is 28078722323. The next prime is 28078722359. The reversal of 28078722341 is 14322787082.

It is a balanced prime because it is at equal distance from previous prime (28078722323) and next prime (28078722359).

It can be written as a sum of positive squares in only one way, i.e., 26352652225 + 1726070116 = 162335^2 + 41546^2 .

It is a cyclic number.

It is not a de Polignac number, because 28078722341 - 2¹⁴ = 28078705957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28078722292 and 28078722301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28078722311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14039361170 + 14039361171.

It is an arithmetic number, because the mean of its divisors is an integer number (14039361171).

Almost surely, 2^28078722341 is an apocalyptic number.

It is an amenable number.

28078722341 is a deficient number, since it is larger than the sum of its proper divisors (1).

28078722341 is an equidigital number, since it uses as much as digits as its factorization.

28078722341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 28078722341 in words is "twenty-eight billion, seventy-eight million, seven hundred twenty-two thousand, three hundred forty-one".