40860687533 has 2 divisors, whose sum is σ = 40860687534.
Its totient is φ = 40860687532.
The previous prime is 40860687529. The next prime is 40860687541. The reversal of 40860687533 is 33578606804.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 35342872009 + 5517815524 = 187997^2 + 74282^2
It is a cyclic number.
It is not a de Polignac number, because 40860687533 - 22 = 40860687529 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (40860687523) by changing a digit.
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 as a sum of consecutive naturals, namely, 20430343766 + 20430343767.
It is an arithmetic number, because the mean of its divisors is an integer number (20430343767).
Almost surely, 240860687533 is an apocalyptic number.
It is an amenable number.
40860687533 is a deficient number, since it is larger than the sum of its proper divisors (1).
40860687533 is an equidigital number, since it uses as much as digits as its factorization.
40860687533 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2903040, while the sum is 50.
The spelling of 40860687533 in words is "forty billion, eight hundred sixty million, six hundred eighty-seven thousand, five hundred thirty-three".