40431381064068 has 24 divisors (see below), whose sum is σ = 94369287771360. Its totient is φ = 13472927218240.

The previous prime is 40431381064049. The next prime is 40431381064073. The reversal of 40431381064068 is 86046018313404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524935278 + ... + 525012293.

It is an arithmetic number, because the mean of its divisors is an integer number (3932053657140).

Almost surely, 2^{40431381064068} is an apocalyptic number.

It is an amenable number.

40431381064068 is an abundant number, since it is smaller than the sum of its proper divisors (53937906707292).

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

40431381064068 is a wasteful number, since it uses less digits than its factorization.

40431381064068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049950787 (or 1049950785 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 40431381064068 in words is "forty trillion, four hundred thirty-one billion, three hundred eighty-one million, sixty-four thousand, sixty-eight".