11405182993 has 8 divisors (see below), whose sum is σ = 11905457000. Its totient is φ = 10915015680.

The previous prime is 11405182981. The next prime is 11405183059. The reversal of 11405182993 is 39928150411.

It can be written as a sum of positive squares in 4 ways, for example, as 2206838529 + 9198344464 = 46977^2 + 95908^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11405182993 - 2⁵ = 11405182961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11405186993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524368 + ... + 2528881.

It is an arithmetic number, because the mean of its divisors is an integer number (1488182125).

Almost surely, 2^11405182993 is an apocalyptic number.

It is an amenable number.

11405182993 is a deficient number, since it is larger than the sum of its proper divisors (500274007).

11405182993 is an equidigital number, since it uses as much as digits as its factorization.

11405182993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053347.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 11405182993 in words is "eleven billion, four hundred five million, one hundred eighty-two thousand, nine hundred ninety-three".