40381704678 has 24 divisors (see below), whose sum is σ = 93949272792. Its totient is φ = 11537629824.

The previous prime is 40381704667. The next prime is 40381704719. The reversal of 40381704678 is 87640718304.

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 11 ways as a sum of consecutive naturals, for example, 68676075 + ... + 68676662.

It is an arithmetic number, because the mean of its divisors is an integer number (3914553033).

Almost surely, 2^40381704678 is an apocalyptic number.

40381704678 is an abundant number, since it is smaller than the sum of its proper divisors (53567568114).

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

40381704678 is a wasteful number, since it uses less digits than its factorization.

40381704678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137352756 (or 137352749 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 40381704678 in words is "forty billion, three hundred eighty-one million, seven hundred four thousand, six hundred seventy-eight".