43364645642 has 8 divisors (see below), whose sum is σ = 65107820100. Its totient is φ = 21662038944.

The previous prime is 43364645629. The next prime is 43364645657. The reversal of 43364645642 is 24654646334.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42878399041 + 486246601 = 207071^2 + 22051^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10139267 + ... + 10143542.

Almost surely, 2^43364645642 is an apocalyptic number.

43364645642 is a deficient number, since it is larger than the sum of its proper divisors (21743174458).

43364645642 is a wasteful number, since it uses less digits than its factorization.

43364645642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20283880.

The product of its digits is 4976640, while the sum is 47.

The spelling of 43364645642 in words is "forty-three billion, three hundred sixty-four million, six hundred forty-five thousand, six hundred forty-two".