28012737927 has 4 divisors (see below), whose sum is σ = 37350317240. Its totient is φ = 18675158616.

The previous prime is 28012737911. The next prime is 28012737931. The reversal of 28012737927 is 72973721082.

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

It is not a de Polignac number, because 28012737927 - 2⁴ = 28012737911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28012732927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4668789652 + ... + 4668789657.

It is an arithmetic number, because the mean of its divisors is an integer number (9337579310).

Almost surely, 2^28012737927 is an apocalyptic number.

28012737927 is a deficient number, since it is larger than the sum of its proper divisors (9337579313).

28012737927 is an equidigital number, since it uses as much as digits as its factorization.

28012737927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337579312.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 28012737927 in words is "twenty-eight billion, twelve million, seven hundred thirty-seven thousand, nine hundred twenty-seven".