11956438383 has 8 divisors (see below), whose sum is σ = 15976351488. Its totient is φ = 7953742104.

The previous prime is 11956438367. The next prime is 11956438393. The reversal of 11956438383 is 38383465911.

11956438383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11956438383 - 2⁴ = 11956438367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11956438343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4302585 + ... + 4305362.

It is an arithmetic number, because the mean of its divisors is an integer number (1997043936).

Almost surely, 2^11956438383 is an apocalyptic number.

11956438383 is a deficient number, since it is larger than the sum of its proper divisors (4019913105).

11956438383 is an equidigital number, since it uses as much as digits as its factorization.

11956438383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608413.

The product of its digits is 1866240, while the sum is 51.

The spelling of 11956438383 in words is "eleven billion, nine hundred fifty-six million, four hundred thirty-eight thousand, three hundred eighty-three".