28060637779 has 2 divisors, whose sum is σ = 28060637780. Its totient is φ = 28060637778.

The previous prime is 28060637641. The next prime is 28060637833. The reversal of 28060637779 is 97773606082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28060637779 - 2¹¹ = 28060635731 is a prime.

It is not a weakly prime, because it can be changed into another prime (28060631779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030318889 + 14030318890.

It is an arithmetic number, because the mean of its divisors is an integer number (14030318890).

Almost surely, 2^28060637779 is an apocalyptic number.

28060637779 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060637779 is an equidigital number, since it uses as much as digits as its factorization.

28060637779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 28060637779 in words is "twenty-eight billion, sixty million, six hundred thirty-seven thousand, seven hundred seventy-nine".