14721513986 has 4 divisors (see below), whose sum is σ = 22082270982. Its totient is φ = 7360756992.

The previous prime is 14721513973. The next prime is 14721514007. The reversal of 14721513986 is 68931512741.

14721513986 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 can be written as a sum of positive squares in only one way, i.e., 8917969225 + 5803544761 = 94435^2 + 76181^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 14721513986.

It is an unprimeable number.

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, 3680378495 + ... + 3680378498.

Almost surely, 2^14721513986 is an apocalyptic number.

14721513986 is a deficient number, since it is larger than the sum of its proper divisors (7360756996).

14721513986 is an equidigital number, since it uses as much as digits as its factorization.

14721513986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7360756995.

The product of its digits is 362880, while the sum is 47.

The spelling of 14721513986 in words is "fourteen billion, seven hundred twenty-one million, five hundred thirteen thousand, nine hundred eighty-six".