28799283977 has 2 divisors, whose sum is σ = 28799283978. Its totient is φ = 28799283976.

The previous prime is 28799283967. The next prime is 28799284051. The reversal of 28799283977 is 77938299782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28613752336 + 185531641 = 169156^2 + 13621^2 .

It is a cyclic number.

It is not a de Polignac number, because 28799283977 - 2⁶ = 28799283913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28799283977.

It is not a weakly prime, because it can be changed into another prime (28799283967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14399641988 + 14399641989.

It is an arithmetic number, because the mean of its divisors is an integer number (14399641989).

Almost surely, 2^28799283977 is an apocalyptic number.

It is an amenable number.

28799283977 is a deficient number, since it is larger than the sum of its proper divisors (1).

28799283977 is an equidigital number, since it uses as much as digits as its factorization.

28799283977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192036096, while the sum is 71.

The spelling of 28799283977 in words is "twenty-eight billion, seven hundred ninety-nine million, two hundred eighty-three thousand, nine hundred seventy-seven".