11837984139479 has 4 divisors (see below), whose sum is σ = 11844910989720. Its totient is φ = 11831057289240.

The previous prime is 11837984139469. The next prime is 11837984139481. The reversal of 11837984139479 is 97493148973811.

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

It is a cyclic number.

It is not a de Polignac number, because 11837984139479 - 2¹⁶ = 11837984073943 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 (11837984139469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3463422557 + ... + 3463425974.

It is an arithmetic number, because the mean of its divisors is an integer number (2961227747430).

Almost surely, 2^{11837984139479} is an apocalyptic number.

11837984139479 is a deficient number, since it is larger than the sum of its proper divisors (6926850241).

11837984139479 is an equidigital number, since it uses as much as digits as its factorization.

11837984139479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926850240.

The product of its digits is 329204736, while the sum is 74.

The spelling of 11837984139479 in words is "eleven trillion, eight hundred thirty-seven billion, nine hundred eighty-four million, one hundred thirty-nine thousand, four hundred seventy-nine".