43601409499 has 6 divisors (see below), whose sum is σ = 44055552084. Its totient is φ = 43151901120.

The previous prime is 43601409487. The next prime is 43601409587. The reversal of 43601409499 is 99490410634.

It is a de Polignac number, because none of the positive numbers 2^k-43601409499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43601409199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2307597 + ... + 2326414.

It is an arithmetic number, because the mean of its divisors is an integer number (7342592014).

Almost surely, 2^43601409499 is an apocalyptic number.

43601409499 is a deficient number, since it is larger than the sum of its proper divisors (454142585).

43601409499 is an frugal number, since it uses more digits than its factorization.

43601409499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634205 (or 4634108 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 43601409499 in words is "forty-three billion, six hundred one million, four hundred nine thousand, four hundred ninety-nine".