11956000993 has 4 divisors (see below), whose sum is σ = 12016081600. Its totient is φ = 11895920388.

The previous prime is 11956000943. The next prime is 11956001003. The reversal of 11956000993 is 39900065911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11956000993 - 2⁹ = 11956000481 is a prime.

It is the 109344-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11956000943) by changing a digit.

It is a nontrivial repunit in base 109343.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30040005 + ... + 30040402.

It is an arithmetic number, because the mean of its divisors is an integer number (3004020400).

Almost surely, 2^11956000993 is an apocalyptic number.

It is an amenable number.

11956000993 is a deficient number, since it is larger than the sum of its proper divisors (60080607).

11956000993 is an equidigital number, since it uses as much as digits as its factorization.

11956000993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60080606.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 11956000993 in words is "eleven billion, nine hundred fifty-six million, nine hundred ninety-three", and thus it is an aban number.