11671779412 has 6 divisors (see below), whose sum is σ = 20425613978. Its totient is φ = 5835889704.

The previous prime is 11671779407. The next prime is 11671779419. The reversal of 11671779412 is 21497717611.

11671779412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11671777296 + 2116 = 108036^2 + 46^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671779419) 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 as a sum of consecutive naturals, namely, 1458972423 + ... + 1458972430.

Almost surely, 2^11671779412 is an apocalyptic number.

It is an amenable number.

11671779412 is a deficient number, since it is larger than the sum of its proper divisors (8753834566).

11671779412 is a wasteful number, since it uses less digits than its factorization.

11671779412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917944857 (or 2917944855 counting only the distinct ones).

The product of its digits is 148176, while the sum is 46.

The spelling of 11671779412 in words is "eleven billion, six hundred seventy-one million, seven hundred seventy-nine thousand, four hundred twelve".