40871138518 has 16 divisors (see below), whose sum is σ = 70072281504. Its totient is φ = 17514334080.

The previous prime is 40871138509. The next prime is 40871138533. The reversal of 40871138518 is 81583117804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15363 + ... + 286318.

It is an arithmetic number, because the mean of its divisors is an integer number (4379517594).

Almost surely, 2^40871138518 is an apocalyptic number.

40871138518 is a deficient number, since it is larger than the sum of its proper divisors (29201142986).

40871138518 is a wasteful number, since it uses less digits than its factorization.

40871138518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311367.

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 40871138518 in words is "forty billion, eight hundred seventy-one million, one hundred thirty-eight thousand, five hundred eighteen".