40544800647 has 24 divisors (see below), whose sum is σ = 58561882704. Its totient is φ = 24940491264.

The previous prime is 40544800633. The next prime is 40544800669. The reversal of 40544800647 is 74600844504.

It is not a de Polignac number, because 40544800647 - 2⁸ = 40544800391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40544800599 and 40544800608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40544840647) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1342303 + ... + 1372175.

It is an arithmetic number, because the mean of its divisors is an integer number (2440078446).

Almost surely, 2^40544800647 is an apocalyptic number.

40544800647 is a deficient number, since it is larger than the sum of its proper divisors (18017082057).

40544800647 is a wasteful number, since it uses less digits than its factorization.

40544800647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32579 (or 32566 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 40544800647 in words is "forty billion, five hundred forty-four million, eight hundred thousand, six hundred forty-seven".