1816798628736 has 288 divisors, whose sum is σ = 6469854365520. Its totient is φ = 479155322880.

The previous prime is 1816798628713. The next prime is 1816798628747. The reversal of 1816798628736 is 6378268976181.

1816798628736 is a `hidden beast` number, since 181 + 67 + 9 + 86 + 287 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 696256 + ... + 2029376.

Almost surely, 2^{1816798628736} is an apocalyptic number.

1816798628736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816798628736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234927182760).

1816798628736 is an abundant number, since it is smaller than the sum of its proper divisors (4653055736784).

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

1816798628736 is a wasteful number, since it uses less digits than its factorization.

1816798628736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333174 (or 1333146 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The spelling of 1816798628736 in words is "one trillion, eight hundred sixteen billion, seven hundred ninety-eight million, six hundred twenty-eight thousand, seven hundred thirty-six".