43606549249 has 8 divisors (see below), whose sum is σ = 45138608640. Its totient is φ = 42082327200.

The previous prime is 43606549247. The next prime is 43606549267. The reversal of 43606549249 is 94294560634.

It is a happy number.

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 43606549249 - 2¹ = 43606549247 is a prime.

It is a super-2 number, since 2×43606549249² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43606549196 and 43606549205.

It is not an unprimeable number, because it can be changed into a prime (43606549247) 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, 1948012 + ... + 1970269.

It is an arithmetic number, because the mean of its divisors is an integer number (5642326080).

Almost surely, 2^43606549249 is an apocalyptic number.

It is an amenable number.

43606549249 is a deficient number, since it is larger than the sum of its proper divisors (1532059391).

43606549249 is a wasteful number, since it uses less digits than its factorization.

43606549249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918671.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 43606549249 in words is "forty-three billion, six hundred six million, five hundred forty-nine thousand, two hundred forty-nine".