11678922520651 has 4 divisors (see below), whose sum is σ = 11682441331600. Its totient is φ = 11675403709704.

The previous prime is 11678922520649. The next prime is 11678922520663. The reversal of 11678922520651 is 15602522987611.

It is a happy number.

11678922520651 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 a cyclic number.

It is not a de Polignac number, because 11678922520651 - 2¹ = 11678922520649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11678922520592 and 11678922520601.

It is not an unprimeable number, because it can be changed into a prime (11678922520051) 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, 1759400496 + ... + 1759407133.

It is an arithmetic number, because the mean of its divisors is an integer number (2920610332900).

Almost surely, 2^{11678922520651} is an apocalyptic number.

11678922520651 is a deficient number, since it is larger than the sum of its proper divisors (3518810949).

11678922520651 is an equidigital number, since it uses as much as digits as its factorization.

11678922520651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518810948.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The spelling of 11678922520651 in words is "eleven trillion, six hundred seventy-eight billion, nine hundred twenty-two million, five hundred twenty thousand, six hundred fifty-one".