40360402759681 has 6 divisors (see below), whose sum is σ = 41320845012210. Its totient is φ = 39421788740208.

The previous prime is 40360402759657. The next prime is 40360402759757. The reversal of 40360402759681 is 18695720406304.

It can be written as a sum of positive squares in only one way, i.e., 30388758760000 + 9971643999681 = 5512600^2 + 3157791^2 .

It is not a de Polignac number, because 40360402759681 - 2⁹ = 40360402759169 is a prime.

It is a super-2 number, since 2×40360402759681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40360402759381) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10914114636 + ... + 10914118333.

It is an arithmetic number, because the mean of its divisors is an integer number (6886807502035).

It is a 1-persistent number, because it is pandigital, but 2⋅40360402759681 = 80720805519362 is not.

Almost surely, 2^{40360402759681} is an apocalyptic number.

It is an amenable number.

40360402759681 is a deficient number, since it is larger than the sum of its proper divisors (960442252529).

40360402759681 is an equidigital number, since it uses as much as digits as its factorization.

40360402759681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21828233055 (or 21828233012 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 40360402759681 in words is "forty trillion, three hundred sixty billion, four hundred two million, seven hundred fifty-nine thousand, six hundred eighty-one".