23964774716689 has 9 divisors (see below), whose sum is σ = 23988212225019. Its totient is φ = 23941360099800.

The previous prime is 23964774716657. The next prime is 23964774716807. The reversal of 23964774716689 is 98661747746932.

The square root of 23964774716689 is 4895383.

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

It can be written as a sum of positive squares in only one way, i.e., 4955000316289 + 19009774400400 = 2225983^2 + 4360020^2 .

It is not a de Polignac number, because 23964774716689 - 2⁵ = 23964774716657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23964774716639) 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, 7259851339 + ... + 7259854639.

It is an arithmetic number, because the mean of its divisors is an integer number (2665356913891).

Almost surely, 2^{23964774716689} is an apocalyptic number.

23964774716689 is the 4895383-rd square number.

23964774716689 is the 2447692-nd centered octagonal number.

It is an amenable number.

23964774716689 is a deficient number, since it is larger than the sum of its proper divisors (23437508330).

23964774716689 is an frugal number, since it uses more digits than its factorization.

23964774716689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9568 (or 4784 counting only the distinct ones).

The product of its digits is 4608866304, while the sum is 79.

The spelling of 23964774716689 in words is "twenty-three trillion, nine hundred sixty-four billion, seven hundred seventy-four million, seven hundred sixteen thousand, six hundred eighty-nine".