1816230708828 has 36 divisors (see below), whose sum is σ = 4749338925240. Its totient is φ = 584534020896.

The previous prime is 1816230708821. The next prime is 1816230708833. The reversal of 1816230708828 is 8288070326181.

1816230708828 is a `hidden beast` number, since 1 + 8 + 1 + 623 + 0 + 7 + 0 + 8 + 8 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816230708821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869841250 + ... + 869843337.

Almost surely, 2^{1816230708828} is an apocalyptic number.

1816230708828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1816230708828 is an abundant number, since it is smaller than the sum of its proper divisors (2933108216412).

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

1816230708828 is a wasteful number, since it uses less digits than its factorization.

1816230708828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739684626 (or 1739684621 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 1816230708828 in words is "one trillion, eight hundred sixteen billion, two hundred thirty million, seven hundred eight thousand, eight hundred twenty-eight".