28018048801 has 4 divisors (see below), whose sum is σ = 28057017600. Its totient is φ = 27979080004.

The previous prime is 28018048783. The next prime is 28018048819. The reversal of 28018048801 is 10884081082.

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 an interprime number because it is at equal distance from previous prime (28018048783) and next prime (28018048819).

It is a cyclic number.

It is not a de Polignac number, because 28018048801 - 2¹¹ = 28018046753 is a prime.

It is a super-2 number, since 2×28018048801² (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 (28018048841) 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, 19483321 + ... + 19484758.

It is an arithmetic number, because the mean of its divisors is an integer number (7014254400).

Almost surely, 2^28018048801 is an apocalyptic number.

It is an amenable number.

28018048801 is a deficient number, since it is larger than the sum of its proper divisors (38968799).

28018048801 is an equidigital number, since it uses as much as digits as its factorization.

28018048801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38968798.

The product of its (nonzero) digits is 32768, while the sum is 40.

The spelling of 28018048801 in words is "twenty-eight billion, eighteen million, forty-eight thousand, eight hundred one".