40855144468 has 12 divisors (see below), whose sum is σ = 71498018592. Its totient is φ = 20427139160.

The previous prime is 40855144457. The next prime is 40855144469. The reversal of 40855144468 is 86444155804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40855144469) 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, 204171 + ... + 351277.

It is an arithmetic number, because the mean of its divisors is an integer number (5958168216).

Almost surely, 2^40855144468 is an apocalyptic number.

It is an amenable number.

40855144468 is a deficient number, since it is larger than the sum of its proper divisors (30642874124).

40855144468 is a wasteful number, since it uses less digits than its factorization.

40855144468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216542 (or 216540 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 49.

The spelling of 40855144468 in words is "forty billion, eight hundred fifty-five million, one hundred forty-four thousand, four hundred sixty-eight".