18804811222426 has 16 divisors (see below), whose sum is σ = 28841593248000. Its totient is φ = 9193257831888.

The previous prime is 18804811222423. The next prime is 18804811222433. The reversal of 18804811222426 is 62422211840881.

It is a super-2 number, since 2×18804811222426² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18804811222426.

It is not an unprimeable number, because it can be changed into a prime (18804811222423) 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, 577740001 + ... + 577772548.

It is an arithmetic number, because the mean of its divisors is an integer number (1802599578000).

Almost surely, 2^{18804811222426} is an apocalyptic number.

18804811222426 is a deficient number, since it is larger than the sum of its proper divisors (10036782025574).

18804811222426 is a wasteful number, since it uses less digits than its factorization.

18804811222426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155512733.

The product of its (nonzero) digits is 786432, while the sum is 49.

The spelling of 18804811222426 in words is "eighteen trillion, eight hundred four billion, eight hundred eleven million, two hundred twenty-two thousand, four hundred twenty-six".