28677425879 has 2 divisors, whose sum is σ = 28677425880. Its totient is φ = 28677425878.

The previous prime is 28677425867. The next prime is 28677425891. The reversal of 28677425879 is 97852477682.

It is a balanced prime because it is at equal distance from previous prime (28677425867) and next prime (28677425891).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28677425879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28677425899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14338712939 + 14338712940.

It is an arithmetic number, because the mean of its divisors is an integer number (14338712940).

Almost surely, 2^28677425879 is an apocalyptic number.

28677425879 is a deficient number, since it is larger than the sum of its proper divisors (1).

28677425879 is an equidigital number, since it uses as much as digits as its factorization.

28677425879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94832640, while the sum is 65.

The spelling of 28677425879 in words is "twenty-eight billion, six hundred seventy-seven million, four hundred twenty-five thousand, eight hundred seventy-nine".