43746445489 has 4 divisors (see below), whose sum is σ = 43988138740. Its totient is φ = 43504752240.

The previous prime is 43746445453. The next prime is 43746445499. The reversal of 43746445489 is 98454464734.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5264953600 + 38481491889 = 72560^2 + 196167^2 .

It is a cyclic number.

It is not a de Polignac number, because 43746445489 - 2¹¹ = 43746443441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43746445499) 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, 120846354 + ... + 120846715.

It is an arithmetic number, because the mean of its divisors is an integer number (10997034685).

Almost surely, 2^43746445489 is an apocalyptic number.

It is an amenable number.

43746445489 is a deficient number, since it is larger than the sum of its proper divisors (241693251).

43746445489 is a wasteful number, since it uses less digits than its factorization.

43746445489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241693250.

The product of its digits is 46448640, while the sum is 58.

The spelling of 43746445489 in words is "forty-three billion, seven hundred forty-six million, four hundred forty-five thousand, four hundred eighty-nine".