43112643601 has 4 divisors (see below), whose sum is σ = 43202649600. Its totient is φ = 43022637604.

The previous prime is 43112643593. The next prime is 43112643611. The reversal of 43112643601 is 10634621134.

It is a happy number.

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 43112643601 - 2³ = 43112643593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43112643611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45002281 + ... + 45003238.

It is an arithmetic number, because the mean of its divisors is an integer number (10800662400).

Almost surely, 2^43112643601 is an apocalyptic number.

It is an amenable number.

43112643601 is a deficient number, since it is larger than the sum of its proper divisors (90005999).

43112643601 is an equidigital number, since it uses as much as digits as its factorization.

43112643601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90005998.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 43112643601 in words is "forty-three billion, one hundred twelve million, six hundred forty-three thousand, six hundred one".