11996237439 has 24 divisors (see below), whose sum is σ = 17379977472. Its totient is φ = 7973498880.

The previous prime is 11996237417. The next prime is 11996237497. The reversal of 11996237439 is 93473269911.

It is a happy number.

11996237439 is a `hidden beast` number, since 1 + 1 + 9 + 9 + 623 + 7 + 4 + 3 + 9 = 666.

11996237439 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 11996237439 - 2⁷ = 11996237311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11996237639) 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 23 ways as a sum of consecutive naturals, for example, 6269947 + ... + 6271859.

It is an arithmetic number, because the mean of its divisors is an integer number (724165728).

Almost surely, 2^11996237439 is an apocalyptic number.

11996237439 is a deficient number, since it is larger than the sum of its proper divisors (5383740033).

11996237439 is a wasteful number, since it uses less digits than its factorization.

11996237439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647 (or 3644 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The spelling of 11996237439 in words is "eleven billion, nine hundred ninety-six million, two hundred thirty-seven thousand, four hundred thirty-nine".