43650491329 has 3 divisors (see below), whose sum is σ = 43650700257. Its totient is φ = 43650282402.

The previous prime is 43650491323. The next prime is 43650491341. The reversal of 43650491329 is 92319405634.

The square root of 43650491329 is 208927.

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 is not a de Polignac number, because 43650491329 - 2²¹ = 43648394177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43650491323) 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, 104464 + ... + 313390.

It is an arithmetic number, because the mean of its divisors is an integer number (14550233419).

Almost surely, 2^43650491329 is an apocalyptic number.

43650491329 is the 208927-th square number.

43650491329 is the 104464-th centered octagonal number.

It is an amenable number.

43650491329 is a deficient number, since it is larger than the sum of its proper divisors (208928).

43650491329 is an frugal number, since it uses more digits than its factorization.

43650491329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417854 (or 208927 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 43650491329 in words is "forty-three billion, six hundred fifty million, four hundred ninety-one thousand, three hundred twenty-nine".