28340211353 has 4 divisors (see below), whose sum is σ = 28341147060. Its totient is φ = 28339275648.

The previous prime is 28340211299. The next prime is 28340211391. The reversal of 28340211353 is 35311204382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35311204382 = 2 ⋅17655602191.

It can be written as a sum of positive squares in 2 ways, for example, as 17824119049 + 10516092304 = 133507^2 + 102548^2 .

It is a cyclic number.

It is not a de Polignac number, because 28340211353 - 2¹⁰ = 28340210329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28340211853) 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, 420848 + ... + 483521.

It is an arithmetic number, because the mean of its divisors is an integer number (7085286765).

Almost surely, 2^28340211353 is an apocalyptic number.

It is an amenable number.

28340211353 is a deficient number, since it is larger than the sum of its proper divisors (935707).

28340211353 is an equidigital number, since it uses as much as digits as its factorization.

28340211353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935706.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 28340211353 in words is "twenty-eight billion, three hundred forty million, two hundred eleven thousand, three hundred fifty-three".