28616750249 has 2 divisors, whose sum is σ = 28616750250. Its totient is φ = 28616750248.

The previous prime is 28616750179. The next prime is 28616750251. The reversal of 28616750249 is 94205761682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25155546025 + 3461204224 = 158605^2 + 58832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28616750249 is a prime.

Together with 28616750251, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28616750197 and 28616750206.

It is not a weakly prime, because it can be changed into another prime (28616750849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14308375124 + 14308375125.

It is an arithmetic number, because the mean of its divisors is an integer number (14308375125).

Almost surely, 2^28616750249 is an apocalyptic number.

It is an amenable number.

28616750249 is a deficient number, since it is larger than the sum of its proper divisors (1).

28616750249 is an equidigital number, since it uses as much as digits as its factorization.

28616750249 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 50.

The spelling of 28616750249 in words is "twenty-eight billion, six hundred sixteen million, seven hundred fifty thousand, two hundred forty-nine".