18404022019012 has 48 divisors (see below), whose sum is σ = 37098411356160. Its totient is φ = 7825294692000.

The previous prime is 18404022019007. The next prime is 18404022019013. The reversal of 18404022019012 is 21091022040481.

It is a happy number.

It is a super-2 number, since 2×18404022019012² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18404022019013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4017837 + ... + 7276747.

It is an arithmetic number, because the mean of its divisors is an integer number (772883569920).

Almost surely, 2^{18404022019012} is an apocalyptic number.

It is an amenable number.

18404022019012 is an abundant number, since it is smaller than the sum of its proper divisors (18694389337148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18404022019012 is a wasteful number, since it uses less digits than its factorization.

18404022019012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260512 (or 3260510 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

Adding to 18404022019012 its reverse (21091022040481), we get a palindrome (39495044059493).

The spelling of 18404022019012 in words is "eighteen trillion, four hundred four billion, twenty-two million, nineteen thousand, twelve".