28813907653 has 2 divisors, whose sum is σ = 28813907654. Its totient is φ = 28813907652.

The previous prime is 28813907651. The next prime is 28813907687. The reversal of 28813907653 is 35670931882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15421169124 + 13392738529 = 124182^2 + 115727^2 .

It is a cyclic number.

It is not a de Polignac number, because 28813907653 - 2¹ = 28813907651 is a prime.

It is a super-2 number, since 2×28813907653² (a number of 22 digits) contains 22 as substring.

Together with 28813907651, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28813907653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28813907651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14406953826 + 14406953827.

It is an arithmetic number, because the mean of its divisors is an integer number (14406953827).

Almost surely, 2^28813907653 is an apocalyptic number.

It is an amenable number.

28813907653 is a deficient number, since it is larger than the sum of its proper divisors (1).

28813907653 is an equidigital number, since it uses as much as digits as its factorization.

28813907653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 28813907653 in words is "twenty-eight billion, eight hundred thirteen million, nine hundred seven thousand, six hundred fifty-three".