7689009969 has 15 divisors (see below), whose sum is σ = 11487230953. Its totient is φ = 5125480524.

The previous prime is 7689009967. The next prime is 7689009971. The reversal of 7689009969 is 9699009867.

The square root of 7689009969 is 87687.

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

It is an interprime number because it is at equal distance from previous prime (7689009967) and next prime (7689009971).

It is not a de Polignac number, because 7689009969 - 2¹ = 7689009967 is a prime.

It is a super-2 number, since 2×7689009969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7689009967) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 784312 + ... + 794054.

Almost surely, 2^7689009969 is an apocalyptic number.

7689009969 is the 87687-th square number.

7689009969 is the 43844-th centered octagonal number.

It is an amenable number.

7689009969 is a deficient number, since it is larger than the sum of its proper divisors (3798220984).

7689009969 is an frugal number, since it uses more digits than its factorization.

7689009969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19498 (or 9746 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The cubic root of 7689009969 is about 1973.7409028846.

The spelling of 7689009969 in words is "seven billion, six hundred eighty-nine million, nine thousand, nine hundred sixty-nine".