23217007470409 has 9 divisors (see below), whose sum is σ = 23238976057767. Its totient is φ = 23195059644744.

The previous prime is 23217007470383. The next prime is 23217007470451. The reversal of 23217007470409 is 90407470071232.

The square root of 23217007470409 is 4818403.

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., 12385141678009 + 10831865792400 = 3519253^2 + 3291180^2 .

It is not a de Polignac number, because 23217007470409 - 2²⁵ = 23216973915977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23217007470509) 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, 8041913164 + ... + 8041916050.

It is an arithmetic number, because the mean of its divisors is an integer number (2582108450863).

Almost surely, 2^{23217007470409} is an apocalyptic number.

23217007470409 is the 4818403-rd square number.

23217007470409 is the 2409202-nd centered octagonal number.

It is an amenable number.

23217007470409 is a deficient number, since it is larger than the sum of its proper divisors (21968587358).

23217007470409 is an frugal number, since it uses more digits than its factorization.

23217007470409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112 (or 4556 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 23217007470409 in words is "twenty-three trillion, two hundred seventeen billion, seven million, four hundred seventy thousand, four hundred nine".