28546369853 has 4 divisors (see below), whose sum is σ = 28552727868. Its totient is φ = 28540011840.

The previous prime is 28546369847. The next prime is 28546369879. The reversal of 28546369853 is 35896364582.

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 28155833209 + 390536644 = 167797^2 + 19762^2 .

It is a cyclic number.

It is not a de Polignac number, because 28546369853 - 2¹⁶ = 28546304317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28546369792 and 28546369801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28546369883) 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, 3172268 + ... + 3181253.

It is an arithmetic number, because the mean of its divisors is an integer number (7138181967).

Almost surely, 2^28546369853 is an apocalyptic number.

It is an amenable number.

28546369853 is a deficient number, since it is larger than the sum of its proper divisors (6358015).

28546369853 is an equidigital number, since it uses as much as digits as its factorization.

28546369853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358014.

The product of its digits is 37324800, while the sum is 59.

The spelling of 28546369853 in words is "twenty-eight billion, five hundred forty-six million, three hundred sixty-nine thousand, eight hundred fifty-three".