40445544481 has 8 divisors (see below), whose sum is σ = 41310680000. Its totient is φ = 39588099408.

The previous prime is 40445544439. The next prime is 40445544499. The reversal of 40445544481 is 18444554404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40445544481 - 2¹⁷ = 40445413409 is a prime.

It is a super-2 number, since 2×40445544481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40445544431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911981 + ... + 1933018.

It is an arithmetic number, because the mean of its divisors is an integer number (5163835000).

Almost surely, 2^40445544481 is an apocalyptic number.

It is an amenable number.

40445544481 is a deficient number, since it is larger than the sum of its proper divisors (865135519).

40445544481 is a wasteful number, since it uses less digits than its factorization.

40445544481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845223.

The product of its (nonzero) digits is 819200, while the sum is 43.

The spelling of 40445544481 in words is "forty billion, four hundred forty-five million, five hundred forty-four thousand, four hundred eighty-one".