28263770113 has 2 divisors, whose sum is σ = 28263770114. Its totient is φ = 28263770112.

The previous prime is 28263770111. The next prime is 28263770141. The reversal of 28263770113 is 31107736282.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14300093889 + 13963676224 = 119583^2 + 118168^2 .

It is a cyclic number.

It is not a de Polignac number, because 28263770113 - 2¹ = 28263770111 is a prime.

Together with 28263770111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28263770111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14131885056 + 14131885057.

It is an arithmetic number, because the mean of its divisors is an integer number (14131885057).

Almost surely, 2^28263770113 is an apocalyptic number.

It is an amenable number.

28263770113 is a deficient number, since it is larger than the sum of its proper divisors (1).

28263770113 is an equidigital number, since it uses as much as digits as its factorization.

28263770113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 28263770113 in words is "twenty-eight billion, two hundred sixty-three million, seven hundred seventy thousand, one hundred thirteen".