11949939683 has 4 divisors (see below), whose sum is σ = 13036297848. Its totient is φ = 10863581520.

The previous prime is 11949939649. The next prime is 11949939689. The reversal of 11949939683 is 38693994911.

11949939683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11949939683 - 2³² = 7654972387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11949939689) 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 3 ways as a sum of consecutive naturals, for example, 543179066 + ... + 543179087.

It is an arithmetic number, because the mean of its divisors is an integer number (3259074462).

Almost surely, 2^11949939683 is an apocalyptic number.

11949939683 is a deficient number, since it is larger than the sum of its proper divisors (1086358165).

11949939683 is a wasteful number, since it uses less digits than its factorization.

11949939683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086358164.

The product of its digits is 11337408, while the sum is 62.

The spelling of 11949939683 in words is "eleven billion, nine hundred forty-nine million, nine hundred thirty-nine thousand, six hundred eighty-three".