28018818023 has 8 divisors (see below), whose sum is σ = 32090078592. Its totient is φ = 23964700536.

The previous prime is 28018818001. The next prime is 28018818041. The reversal of 28018818023 is 32081881082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28018818023 - 2²⁸ = 27750382567 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 (28018818083) 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 7 ways as a sum of consecutive naturals, for example, 4282265 + ... + 4288802.

It is an arithmetic number, because the mean of its divisors is an integer number (4011259824).

Almost surely, 2^28018818023 is an apocalyptic number.

28018818023 is a deficient number, since it is larger than the sum of its proper divisors (4071260569).

28018818023 is an equidigital number, since it uses as much as digits as its factorization.

28018818023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571541.

The product of its (nonzero) digits is 49152, while the sum is 41.

The spelling of 28018818023 in words is "twenty-eight billion, eighteen million, eight hundred eighteen thousand, twenty-three".