28008050549 has 2 divisors, whose sum is σ = 28008050550. Its totient is φ = 28008050548.

The previous prime is 28008050513. The next prime is 28008050561. The reversal of 28008050549 is 94505080082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26096787025 + 1911263524 = 161545^2 + 43718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28008050549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28008050599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14004025274 + 14004025275.

It is an arithmetic number, because the mean of its divisors is an integer number (14004025275).

Almost surely, 2^28008050549 is an apocalyptic number.

It is an amenable number.

28008050549 is a deficient number, since it is larger than the sum of its proper divisors (1).

28008050549 is an equidigital number, since it uses as much as digits as its factorization.

28008050549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 28008050549 in words is "twenty-eight billion, eight million, fifty thousand, five hundred forty-nine".