11955782471 has 6 divisors (see below), whose sum is σ = 12618153072. Its totient is φ = 11326530420.

The previous prime is 11955782429. The next prime is 11955782473. The reversal of 11955782471 is 17428755911.

11955782471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11955782471 - 2⁶ = 11955782407 is a prime.

It is a super-3 number, since 3×11955782471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11955782473) 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 5 ways as a sum of consecutive naturals, for example, 16558895 + ... + 16559616.

It is an arithmetic number, because the mean of its divisors is an integer number (2103025512).

Almost surely, 2^11955782471 is an apocalyptic number.

11955782471 is a deficient number, since it is larger than the sum of its proper divisors (662370601).

11955782471 is an equidigital number, since it uses as much as digits as its factorization.

11955782471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33118549 (or 33118530 counting only the distinct ones).

The product of its digits is 705600, while the sum is 50.

The spelling of 11955782471 in words is "eleven billion, nine hundred fifty-five million, seven hundred eighty-two thousand, four hundred seventy-one".