40500377745809 has 2 divisors, whose sum is σ = 40500377745810. Its totient is φ = 40500377745808.

The previous prime is 40500377745791. The next prime is 40500377745943. The reversal of 40500377745809 is 90854777300504.

It is a happy number.

40500377745809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27925041892225 + 12575335853584 = 5284415^2 + 3546172^2 .

It is a cyclic number.

It is not a de Polignac number, because 40500377745809 - 2³⁶ = 40431658269073 is a prime.

It is not a weakly prime, because it can be changed into another prime (40500377345809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20250188872904 + 20250188872905.

It is an arithmetic number, because the mean of its divisors is an integer number (20250188872905).

Almost surely, 2^{40500377745809} is an apocalyptic number.

It is an amenable number.

40500377745809 is a deficient number, since it is larger than the sum of its proper divisors (1).

40500377745809 is an equidigital number, since it uses as much as digits as its factorization.

40500377745809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29635200, while the sum is 59.

The spelling of 40500377745809 in words is "forty trillion, five hundred billion, three hundred seventy-seven million, seven hundred forty-five thousand, eight hundred nine".