28624808052653 has 4 divisors (see below), whose sum is σ = 28625151948540. Its totient is φ = 28624464156768.

The previous prime is 28624808052649. The next prime is 28624808052667. The reversal of 28624808052653 is 35625080842682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16463776923364 + 12161031129289 = 4057558^2 + 3487267^2 .

It is a cyclic number.

It is not a de Polignac number, because 28624808052653 - 2² = 28624808052649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28624808052592 and 28624808052601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28624808252653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171823058 + ... + 171989571.

It is an arithmetic number, because the mean of its divisors is an integer number (7156287987135).

Almost surely, 2^{28624808052653} is an apocalyptic number.

It is an amenable number.

28624808052653 is a deficient number, since it is larger than the sum of its proper divisors (343895887).

28624808052653 is an equidigital number, since it uses as much as digits as its factorization.

28624808052653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343895886.

The product of its (nonzero) digits is 44236800, while the sum is 59.

The spelling of 28624808052653 in words is "twenty-eight trillion, six hundred twenty-four billion, eight hundred eight million, fifty-two thousand, six hundred fifty-three".