11694431739 has 4 divisors (see below), whose sum is σ = 15592575656. Its totient is φ = 7796287824.

The previous prime is 11694431687. The next prime is 11694431773. The reversal of 11694431739 is 93713449611.

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

It is not a de Polignac number, because 11694431739 - 2¹⁵ = 11694398971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11694431339) 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, 1949071954 + ... + 1949071959.

It is an arithmetic number, because the mean of its divisors is an integer number (3898143914).

Almost surely, 2^11694431739 is an apocalyptic number.

11694431739 is a deficient number, since it is larger than the sum of its proper divisors (3898143917).

11694431739 is an equidigital number, since it uses as much as digits as its factorization.

11694431739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898143916.

The product of its digits is 489888, while the sum is 48.

The spelling of 11694431739 in words is "eleven billion, six hundred ninety-four million, four hundred thirty-one thousand, seven hundred thirty-nine".