43494005545 has 4 divisors (see below), whose sum is σ = 52192806660. Its totient is φ = 34795204432.

The previous prime is 43494005539. The next prime is 43494005567. The reversal of 43494005545 is 54550049434.

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 8022426624 + 35471578921 = 89568^2 + 188339^2 .

It is a cyclic number.

It is not a de Polignac number, because 43494005545 - 2¹⁹ = 43493481257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349400550 + ... + 4349400559.

It is an arithmetic number, because the mean of its divisors is an integer number (13048201665).

Almost surely, 2^43494005545 is an apocalyptic number.

It is an amenable number.

43494005545 is a deficient number, since it is larger than the sum of its proper divisors (8698801115).

43494005545 is an equidigital number, since it uses as much as digits as its factorization.

43494005545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8698801114.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 43494005545 in words is "forty-three billion, four hundred ninety-four million, five thousand, five hundred forty-five".