1993411983353 has 16 divisors (see below), whose sum is σ = 2318528318976. Its totient is φ = 1678453928640.

The previous prime is 1993411983349. The next prime is 1993411983389. The reversal of 1993411983353 is 3533891143991.

It is a cyclic number.

It is not a de Polignac number, because 1993411983353 - 2² = 1993411983349 is a prime.

It is a super-2 number, since 2×1993411983353² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1993411983292 and 1993411983301.

It is not an unprimeable number, because it can be changed into a prime (1993411983653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2689601 + ... + 3349742.

It is an arithmetic number, because the mean of its divisors is an integer number (144908019936).

Almost surely, 2^{1993411983353} is an apocalyptic number.

It is an amenable number.

1993411983353 is a deficient number, since it is larger than the sum of its proper divisors (325116335623).

1993411983353 is an equidigital number, since it uses as much as digits as its factorization.

1993411983353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040184.

The product of its digits is 9447840, while the sum is 59.

The spelling of 1993411983353 in words is "one trillion, nine hundred ninety-three billion, four hundred eleven million, nine hundred eighty-three thousand, three hundred fifty-three".