43650661425 has 36 divisors (see below), whose sum is σ = 83951809776. Its totient is φ = 19954586400.

The previous prime is 43650661339. The next prime is 43650661469. The reversal of 43650661425 is 52416605634.

It is not a de Polignac number, because 43650661425 - 2⁸ = 43650661169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5935191 + ... + 5942540.

It is an arithmetic number, because the mean of its divisors is an integer number (2331994716).

Almost surely, 2^43650661425 is an apocalyptic number.

It is an amenable number.

43650661425 is a deficient number, since it is larger than the sum of its proper divisors (40301148351).

43650661425 is a wasteful number, since it uses less digits than its factorization.

43650661425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877758 (or 11877746 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 43650661425 in words is "forty-three billion, six hundred fifty million, six hundred sixty-one thousand, four hundred twenty-five".