18928065011 has 8 divisors (see below), whose sum is σ = 19216015824. Its totient is φ = 18640274400.

The previous prime is 18928065007. The next prime is 18928065077. The reversal of 18928065011 is 11056082981.

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

It is a cyclic number.

It is not a de Polignac number, because 18928065011 - 2² = 18928065007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18928065011.

It is not an unprimeable number, because it can be changed into a prime (18928065311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209801 + ... + 286133.

It is an arithmetic number, because the mean of its divisors is an integer number (2402001978).

Almost surely, 2^18928065011 is an apocalyptic number.

18928065011 is a deficient number, since it is larger than the sum of its proper divisors (287950813).

18928065011 is an equidigital number, since it uses as much as digits as its factorization.

18928065011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80101.

The product of its (nonzero) digits is 34560, while the sum is 41.

The spelling of 18928065011 in words is "eighteen billion, nine hundred twenty-eight million, sixty-five thousand, eleven".