40040963668 has 24 divisors (see below), whose sum is σ = 74246760000. Its totient is φ = 18829292928.

The previous prime is 40040963657. The next prime is 40040963737. The reversal of 40040963668 is 86636904004.

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, 115318 + ... + 305581.

It is an arithmetic number, because the mean of its divisors is an integer number (3093615000).

Almost surely, 2^40040963668 is an apocalyptic number.

It is an amenable number.

40040963668 is a deficient number, since it is larger than the sum of its proper divisors (34205796332).

40040963668 is a wasteful number, since it uses less digits than its factorization.

40040963668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422319 (or 422317 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 40040963668 in words is "forty billion, forty million, nine hundred sixty-three thousand, six hundred sixty-eight".