40539644879876 has 12 divisors (see below), whose sum is σ = 73232906880000. Its totient is φ = 19615957199880.

The previous prime is 40539644879819. The next prime is 40539644879939. The reversal of 40539644879876 is 67897844693504.

It is a self number, because there is not a number n which added to its sum of digits gives 40539644879876.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163466309876 + ... + 163466310123.

It is an arithmetic number, because the mean of its divisors is an integer number (6102742240000).

Almost surely, 2^{40539644879876} is an apocalyptic number.

It is an amenable number.

40539644879876 is a deficient number, since it is larger than the sum of its proper divisors (32693262000124).

40539644879876 is a wasteful number, since it uses less digits than its factorization.

40539644879876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326932620034 (or 326932620032 counting only the distinct ones).

The product of its (nonzero) digits is 8778792960, while the sum is 80.

The spelling of 40539644879876 in words is "forty trillion, five hundred thirty-nine billion, six hundred forty-four million, eight hundred seventy-nine thousand, eight hundred seventy-six".