43657928241 has 4 divisors (see below), whose sum is σ = 58210570992. Its totient is φ = 29105285492.

The previous prime is 43657928231. The next prime is 43657928273. The reversal of 43657928241 is 14282975634.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43657928241 - 2¹⁵ = 43657895473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43657928221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7276321371 + ... + 7276321376.

It is an arithmetic number, because the mean of its divisors is an integer number (14552642748).

Almost surely, 2^43657928241 is an apocalyptic number.

It is an amenable number.

43657928241 is a deficient number, since it is larger than the sum of its proper divisors (14552642751).

43657928241 is a wasteful number, since it uses less digits than its factorization.

43657928241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14552642750.

The product of its digits is 2903040, while the sum is 51.

The spelling of 43657928241 in words is "forty-three billion, six hundred fifty-seven million, nine hundred twenty-eight thousand, two hundred forty-one".