11678521622 has 4 divisors (see below), whose sum is σ = 17517782436. Its totient is φ = 5839260810.

The previous prime is 11678521583. The next prime is 11678521633. The reversal of 11678521622 is 22612587611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22612587611 = 16253 ⋅1391287.

It is a self number, because there is not a number n which added to its sum of digits gives 11678521622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2919630404 + ... + 2919630407.

It is an arithmetic number, because the mean of its divisors is an integer number (4379445609).

Almost surely, 2^11678521622 is an apocalyptic number.

11678521622 is a deficient number, since it is larger than the sum of its proper divisors (5839260814).

11678521622 is an equidigital number, since it uses as much as digits as its factorization.

11678521622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839260813.

The product of its digits is 80640, while the sum is 41.

The spelling of 11678521622 in words is "eleven billion, six hundred seventy-eight million, five hundred twenty-one thousand, six hundred twenty-two".