40005601768 has 24 divisors (see below), whose sum is σ = 82449563490. Its totient is φ = 18184364000.

The previous prime is 40005601739. The next prime is 40005601777. The reversal of 40005601768 is 86710650004.

It can be written as a sum of positive squares in only one way, i.e., 31825846404 + 8179755364 = 178398^2 + 90442^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20663083 + ... + 20665018.

Almost surely, 2^40005601768 is an apocalyptic number.

It is an amenable number.

40005601768 is an abundant number, since it is smaller than the sum of its proper divisors (42443961722).

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

40005601768 is a wasteful number, since it uses less digits than its factorization.

40005601768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41328129 (or 41328114 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 40005601768 in words is "forty billion, five million, six hundred one thousand, seven hundred sixty-eight".