7668329761 has 9 divisors (see below), whose sum is σ = 7790451249. Its totient is φ = 7548097524.

The previous prime is 7668329699. The next prime is 7668329771. The reversal of 7668329761 is 1679238667.

It is a happy number.

The square root of 7668329761 is 87569.

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

It is not a de Polignac number, because 7668329761 - 2¹¹ = 7668327713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668329771) 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, 5866470 + ... + 5867776.

Almost surely, 2^7668329761 is an apocalyptic number.

7668329761 is the 87569-th square number.

7668329761 is the 43785-th centered octagonal number.

It is an amenable number.

7668329761 is a deficient number, since it is larger than the sum of its proper divisors (122121488).

7668329761 is an frugal number, since it uses more digits than its factorization.

7668329761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748 (or 1374 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The cubic root of 7668329761 is about 1971.9698026946.

The spelling of 7668329761 in words is "seven billion, six hundred sixty-eight million, three hundred twenty-nine thousand, seven hundred sixty-one".