43557212159 has 8 divisors (see below), whose sum is σ = 45867988320. Its totient is φ = 41281184736.

The previous prime is 43557212089. The next prime is 43557212173. The reversal of 43557212159 is 95121275534.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43557212159 - 2²⁰ = 43556163583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43557272159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8684612 + ... + 8689625.

It is an arithmetic number, because the mean of its divisors is an integer number (5733498540).

Almost surely, 2^43557212159 is an apocalyptic number.

43557212159 is a deficient number, since it is larger than the sum of its proper divisors (2310776161).

43557212159 is a wasteful number, since it uses less digits than its factorization.

43557212159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17374369.

The product of its digits is 378000, while the sum is 44.

The spelling of 43557212159 in words is "forty-three billion, five hundred fifty-seven million, two hundred twelve thousand, one hundred fifty-nine".