1819730336368 has 40 divisors (see below), whose sum is σ = 4029553208160. Its totient is φ = 779855335680.

The previous prime is 1819730336339. The next prime is 1819730336377. The reversal of 1819730336368 is 8636330379181.

It is a happy number.

It is a super-2 number, since 2×1819730336368² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859198 + ... + 3437218.

It is an arithmetic number, because the mean of its divisors is an integer number (100738830204).

Almost surely, 2^{1819730336368} is an apocalyptic number.

It is an amenable number.

1819730336368 is an abundant number, since it is smaller than the sum of its proper divisors (2209822871792).

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

1819730336368 is a wasteful number, since it uses less digits than its factorization.

1819730336368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606145 (or 606139 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 1819730336368 in words is "one trillion, eight hundred nineteen billion, seven hundred thirty million, three hundred thirty-six thousand, three hundred sixty-eight".