28180560679 has 2 divisors, whose sum is σ = 28180560680. Its totient is φ = 28180560678.

The previous prime is 28180560677. The next prime is 28180560703. The reversal of 28180560679 is 97606508182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28180560679 - 2¹ = 28180560677 is a prime.

Together with 28180560677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28180560677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14090280339 + 14090280340.

It is an arithmetic number, because the mean of its divisors is an integer number (14090280340).

Almost surely, 2^28180560679 is an apocalyptic number.

28180560679 is a deficient number, since it is larger than the sum of its proper divisors (1).

28180560679 is an equidigital number, since it uses as much as digits as its factorization.

28180560679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 28180560679 in words is "twenty-eight billion, one hundred eighty million, five hundred sixty thousand, six hundred seventy-nine".