23522238100729 has 3 divisors (see below), whose sum is σ = 23522242950703. Its totient is φ = 23522233250756.

The previous prime is 23522238100657. The next prime is 23522238100793. The reversal of 23522238100729 is 92700183222532.

The square root of 23522238100729 is 4849973.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 23159530629225 + 362707471504 = 4812435^2 + 602252^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23522238100729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23522238100429) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2424987 + ... + 7274959.

Almost surely, 2^{23522238100729} is an apocalyptic number.

23522238100729 is the 4849973-rd square number.

23522238100729 is the 2424987-th centered octagonal number.

It is an amenable number.

23522238100729 is a deficient number, since it is larger than the sum of its proper divisors (4849974).

23522238100729 is an frugal number, since it uses more digits than its factorization.

23522238100729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9699946 (or 4849973 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 23522238100729 in words is "twenty-three trillion, five hundred twenty-two billion, two hundred thirty-eight million, one hundred thousand, seven hundred twenty-nine".