14789721769 has 9 divisors (see below), whose sum is σ = 15286096029. Its totient is φ = 14308985580.

The previous prime is 14789721767. The next prime is 14789721773. The reversal of 14789721769 is 96712798741.

The square root of 14789721769 is 121613.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 14789721769 - 2¹ = 14789721767 is a prime.

It is a super-2 number, since 2×14789721769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14789721767) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3768042 + ... + 3771964.

Almost surely, 2^14789721769 is an apocalyptic number.

14789721769 is the 121613-rd square number.

14789721769 is the 60807-th centered octagonal number.

It is an amenable number.

14789721769 is a deficient number, since it is larger than the sum of its proper divisors (496374260).

14789721769 is an frugal number, since it uses more digits than its factorization.

14789721769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7908 (or 3954 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 61.

The spelling of 14789721769 in words is "fourteen billion, seven hundred eighty-nine million, seven hundred twenty-one thousand, seven hundred sixty-nine".