40320739568 has 20 divisors (see below), whose sum is σ = 78126392448. Its totient is φ = 20159089920.

The previous prime is 40320739549. The next prime is 40320739579. The reversal of 40320739568 is 86593702304.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212273 + ... + 354543.

Almost surely, 2^40320739568 is an apocalyptic number.

It is an amenable number.

40320739568 is a deficient number, since it is larger than the sum of its proper divisors (37805652880).

40320739568 is a wasteful number, since it uses less digits than its factorization.

40320739568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159992 (or 159986 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 40320739568 in words is "forty billion, three hundred twenty million, seven hundred thirty-nine thousand, five hundred sixty-eight".