40856811612 has 24 divisors (see below), whose sum is σ = 95549731200. Its totient is φ = 13587912816.

The previous prime is 40856811601. The next prime is 40856811629. The reversal of 40856811612 is 21611865804.

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, 3872562 + ... + 3883097.

It is an arithmetic number, because the mean of its divisors is an integer number (3981238800).

Almost surely, 2^40856811612 is an apocalyptic number.

It is an amenable number.

40856811612 is an abundant number, since it is smaller than the sum of its proper divisors (54692919588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40856811612 is a wasteful number, since it uses less digits than its factorization.

40856811612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756105 (or 7756103 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 40856811612 in words is "forty billion, eight hundred fifty-six million, eight hundred eleven thousand, six hundred twelve".