11839694771 has 4 divisors (see below), whose sum is σ = 11950346232. Its totient is φ = 11729043312.

The previous prime is 11839694749. The next prime is 11839694837. The reversal of 11839694771 is 17749693811.

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 11839694771 - 2²⁶ = 11772585907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11839694731) 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, 55325570 + ... + 55325783.

It is an arithmetic number, because the mean of its divisors is an integer number (2987586558).

Almost surely, 2^11839694771 is an apocalyptic number.

11839694771 is a deficient number, since it is larger than the sum of its proper divisors (110651461).

11839694771 is a wasteful number, since it uses less digits than its factorization.

11839694771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110651460.

The product of its digits is 2286144, while the sum is 56.

The spelling of 11839694771 in words is "eleven billion, eight hundred thirty-nine million, six hundred ninety-four thousand, seven hundred seventy-one".