43643607007 has 24 divisors (see below), whose sum is σ = 59042351648. Its totient is φ = 31391997120.

The previous prime is 43643606971. The next prime is 43643607019. The reversal of 43643607007 is 70070634634.

It is not a de Polignac number, because 43643607007 - 2¹⁵ = 43643574239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43643607097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1970808 + ... + 1992829.

Almost surely, 2^43643607007 is an apocalyptic number.

43643607007 is a deficient number, since it is larger than the sum of its proper divisors (15398744641).

43643607007 is a wasteful number, since it uses less digits than its factorization.

43643607007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963679 (or 3963668 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 43643607007 in words is "forty-three billion, six hundred forty-three million, six hundred seven thousand, seven".