14188972646 has 8 divisors (see below), whose sum is σ = 22403641080. Its totient is φ = 6721092288.

The previous prime is 14188972643. The next prime is 14188972657. The reversal of 14188972646 is 64627988141.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 14188972591 and 14188972600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14188972643) 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, 186696971 + ... + 186697046.

It is an arithmetic number, because the mean of its divisors is an integer number (2800455135).

Almost surely, 2^14188972646 is an apocalyptic number.

14188972646 is a deficient number, since it is larger than the sum of its proper divisors (8214668434).

14188972646 is a wasteful number, since it uses less digits than its factorization.

14188972646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373394038.

The product of its digits is 4644864, while the sum is 56.

The spelling of 14188972646 in words is "fourteen billion, one hundred eighty-eight million, nine hundred seventy-two thousand, six hundred forty-six".