18941828911089 has 48 divisors (see below), whose sum is σ = 30724797916800. Its totient is φ = 10330238392320.

The previous prime is 18941828911067. The next prime is 18941828911091. The reversal of 18941828911089 is 98011982814981.

It is not a de Polignac number, because 18941828911089 - 2¹¹ = 18941828909041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (18941828911039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4720722 + ... + 7756859.

It is an arithmetic number, because the mean of its divisors is an integer number (640099956600).

Almost surely, 2^{18941828911089} is an apocalyptic number.

It is an amenable number.

18941828911089 is a deficient number, since it is larger than the sum of its proper divisors (11782969005711).

18941828911089 is a wasteful number, since it uses less digits than its factorization.

18941828911089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12478070 (or 12478063 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 69.

The spelling of 18941828911089 in words is "eighteen trillion, nine hundred forty-one billion, eight hundred twenty-eight million, nine hundred eleven thousand, eighty-nine".