28027562697923 has 4 divisors (see below), whose sum is σ = 28030755275640. Its totient is φ = 28024370120208.

The previous prime is 28027562697907. The next prime is 28027562697947. The reversal of 28027562697923 is 32979626572082.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28027562697923 - 2⁴ = 28027562697907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28027562697973) 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, 1596275690 + ... + 1596293247.

It is an arithmetic number, because the mean of its divisors is an integer number (7007688818910).

Almost surely, 2^{28027562697923} is an apocalyptic number.

28027562697923 is a deficient number, since it is larger than the sum of its proper divisors (3192577717).

28027562697923 is an equidigital number, since it uses as much as digits as its factorization.

28027562697923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192577716.

The product of its (nonzero) digits is 274337280, while the sum is 68.

The spelling of 28027562697923 in words is "twenty-eight trillion, twenty-seven billion, five hundred sixty-two million, six hundred ninety-seven thousand, nine hundred twenty-three".