11956438382 has 64 divisors (see below), whose sum is σ = 21459271680. Its totient is φ = 4890444000.

The previous prime is 11956438367. The next prime is 11956438393. The reversal of 11956438382 is 28383465911.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 11956438382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5084507 + ... + 5086857.

It is an arithmetic number, because the mean of its divisors is an integer number (335301120).

Almost surely, 2^11956438382 is an apocalyptic number.

11956438382 is a deficient number, since it is larger than the sum of its proper divisors (9502833298).

11956438382 is a wasteful number, since it uses less digits than its factorization.

11956438382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597.

The product of its digits is 1244160, while the sum is 50.

The spelling of 11956438382 in words is "eleven billion, nine hundred fifty-six million, four hundred thirty-eight thousand, three hundred eighty-two".