28965736057 has 2 divisors, whose sum is σ = 28965736058. Its totient is φ = 28965736056.

The previous prime is 28965736031. The next prime is 28965736069. The reversal of 28965736057 is 75063756982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28853778496 + 111957561 = 169864^2 + 10581^2 .

It is a cyclic number.

It is not a de Polignac number, because 28965736057 - 2¹¹ = 28965734009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28965735992 and 28965736010.

It is not a weakly prime, because it can be changed into another prime (28965736087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14482868028 + 14482868029.

It is an arithmetic number, because the mean of its divisors is an integer number (14482868029).

Almost surely, 2^28965736057 is an apocalyptic number.

It is an amenable number.

28965736057 is a deficient number, since it is larger than the sum of its proper divisors (1).

28965736057 is an equidigital number, since it uses as much as digits as its factorization.

28965736057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 28965736057 in words is "twenty-eight billion, nine hundred sixty-five million, seven hundred thirty-six thousand, fifty-seven".