28510104913 has 2 divisors, whose sum is σ = 28510104914. Its totient is φ = 28510104912.

The previous prime is 28510104907. The next prime is 28510104937. The reversal of 28510104913 is 31940101582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25063005969 + 3447098944 = 158313^2 + 58712^2 .

It is a cyclic number.

It is not a de Polignac number, because 28510104913 - 2⁹ = 28510104401 is a prime.

It is not a weakly prime, because it can be changed into another prime (28510104613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14255052456 + 14255052457.

It is an arithmetic number, because the mean of its divisors is an integer number (14255052457).

Almost surely, 2^28510104913 is an apocalyptic number.

It is an amenable number.

28510104913 is a deficient number, since it is larger than the sum of its proper divisors (1).

28510104913 is an equidigital number, since it uses as much as digits as its factorization.

28510104913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 28510104913 in words is "twenty-eight billion, five hundred ten million, one hundred four thousand, nine hundred thirteen".