11837797239 has 4 divisors (see below), whose sum is σ = 15783729656. Its totient is φ = 7891864824.

The previous prime is 11837797219. The next prime is 11837797243. The reversal of 11837797239 is 93279773811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11837797239 - 2⁵ = 11837797207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11837797219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972966204 + ... + 1972966209.

It is an arithmetic number, because the mean of its divisors is an integer number (3945932414).

Almost surely, 2^11837797239 is an apocalyptic number.

11837797239 is a deficient number, since it is larger than the sum of its proper divisors (3945932417).

11837797239 is an equidigital number, since it uses as much as digits as its factorization.

11837797239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945932416.

The product of its digits is 4000752, while the sum is 57.

The spelling of 11837797239 in words is "eleven billion, eight hundred thirty-seven million, seven hundred ninety-seven thousand, two hundred thirty-nine".