1809063949693 has 192 divisors, whose sum is σ = 2596146380800. Its totient is φ = 1224943948800.

The previous prime is 1809063949687. The next prime is 1809063949697. The reversal of 1809063949693 is 3969493609081.

It is not a de Polignac number, because 1809063949693 - 2⁵ = 1809063949661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809063949697) 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 191 ways as a sum of consecutive naturals, for example, 1968513088 + ... + 1968514006.

Almost surely, 2^{1809063949693} is an apocalyptic number.

1809063949693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1809063949693 is a deficient number, since it is larger than the sum of its proper divisors (787082431107).

1809063949693 is a wasteful number, since it uses less digits than its factorization.

1809063949693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 68024448, while the sum is 67.

The spelling of 1809063949693 in words is "one trillion, eight hundred nine billion, sixty-three million, nine hundred forty-nine thousand, six hundred ninety-three".