1809173103696 has 100 divisors (see below), whose sum is σ = 5984310710752. Its totient is φ = 516906598464.

The previous prime is 1809173103691. The next prime is 1809173103713. The reversal of 1809173103696 is 6963013719081.

It is a happy number.

1809173103696 is a `hidden beast` number, since 180 + 91 + 7 + 3 + 10 + 369 + 6 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809173103691) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 99702850 + ... + 99720993.

Almost surely, 2^{1809173103696} is an apocalyptic number.

1809173103696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1809173103696 is an abundant number, since it is smaller than the sum of its proper divisors (4175137607056).

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

1809173103696 is a wasteful number, since it uses less digits than its factorization.

1809173103696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199423870 (or 199423855 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 1809173103696 in words is "one trillion, eight hundred nine billion, one hundred seventy-three million, one hundred three thousand, six hundred ninety-six".