28114235801 has 4 divisors (see below), whose sum is σ = 28143924432. Its totient is φ = 28084547172.

The previous prime is 28114235777. The next prime is 28114235827. The reversal of 28114235801 is 10853241182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28114235801 - 2¹⁴ = 28114219417 is a prime.

It is a super-2 number, since 2×28114235801² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28114235101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14842895 + ... + 14844788.

It is an arithmetic number, because the mean of its divisors is an integer number (7035981108).

Almost surely, 2^28114235801 is an apocalyptic number.

It is an amenable number.

28114235801 is a deficient number, since it is larger than the sum of its proper divisors (29688631).

28114235801 is an equidigital number, since it uses as much as digits as its factorization.

28114235801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29688630.

The product of its (nonzero) digits is 15360, while the sum is 35.

Adding to 28114235801 its reverse (10853241182), we get a palindrome (38967476983).

The spelling of 28114235801 in words is "twenty-eight billion, one hundred fourteen million, two hundred thirty-five thousand, eight hundred one".