14989726647 has 16 divisors (see below), whose sum is σ = 25379431680. Its totient is φ = 8565557976.

The previous prime is 14989726627. The next prime is 14989726667. The reversal of 14989726647 is 74662798941.

It is an interprime number because it is at equal distance from previous prime (14989726627) and next prime (14989726667).

It is not a de Polignac number, because 14989726647 - 2¹² = 14989722551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14989726627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39655173 + ... + 39655550.

It is an arithmetic number, because the mean of its divisors is an integer number (1586214480).

Almost surely, 2^14989726647 is an apocalyptic number.

14989726647 is a deficient number, since it is larger than the sum of its proper divisors (10389705033).

14989726647 is an equidigital number, since it uses as much as digits as its factorization.

14989726647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79310739 (or 79310733 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 14989726647 in words is "fourteen billion, nine hundred eighty-nine million, seven hundred twenty-six thousand, six hundred forty-seven".