40681840615 has 32 divisors (see below), whose sum is σ = 53997705216. Its totient is φ = 29231984640.

The previous prime is 40681840607. The next prime is 40681840679. The reversal of 40681840615 is 51604818604.

It is not a de Polignac number, because 40681840615 - 2³ = 40681840607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1000767 + ... + 1040623.

It is an arithmetic number, because the mean of its divisors is an integer number (1687428288).

Almost surely, 2^40681840615 is an apocalyptic number.

40681840615 is a deficient number, since it is larger than the sum of its proper divisors (13315864601).

40681840615 is a wasteful number, since it uses less digits than its factorization.

40681840615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40299.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 40681840615 in words is "forty billion, six hundred eighty-one million, eight hundred forty thousand, six hundred fifteen".