18821821088034 has 32 divisors (see below), whose sum is σ = 42127177512000. Its totient is φ = 6228804098592.

The previous prime is 18821821087939. The next prime is 18821821088093. The reversal of 18821821088034 is 43088012812881.

It is a happy number.

18821821088034 is a `hidden beast` number, since 188 + 218 + 210 + 8 + 8 + 0 + 34 = 666.

It is a super-2 number, since 2×18821821088034² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253777539 + ... + 1253792550.

It is an arithmetic number, because the mean of its divisors is an integer number (1316474297250).

Almost surely, 2^{18821821088034} is an apocalyptic number.

18821821088034 is an abundant number, since it is smaller than the sum of its proper divisors (23305356423966).

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

18821821088034 is a wasteful number, since it uses less digits than its factorization.

18821821088034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507570239 (or 2507570233 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 54.

The spelling of 18821821088034 in words is "eighteen trillion, eight hundred twenty-one billion, eight hundred twenty-one million, eighty-eight thousand, thirty-four".