43974608545 has 32 divisors (see below), whose sum is σ = 61782766848. Its totient is φ = 29418294528.

The previous prime is 43974608497. The next prime is 43974608551. The reversal of 43974608545 is 54580647934.

It is not a de Polignac number, because 43974608545 - 2¹¹ = 43974606497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1303227 + ... + 1336543.

It is an arithmetic number, because the mean of its divisors is an integer number (1930711464).

Almost surely, 2^43974608545 is an apocalyptic number.

It is an amenable number.

43974608545 is a deficient number, since it is larger than the sum of its proper divisors (17808158303).

43974608545 is a wasteful number, since it uses less digits than its factorization.

43974608545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34249.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 43974608545 in words is "forty-three billion, nine hundred seventy-four million, six hundred eight thousand, five hundred forty-five".