40020277567609 has 2 divisors, whose sum is σ = 40020277567610. Its totient is φ = 40020277567608.

The previous prime is 40020277567583. The next prime is 40020277567727. The reversal of 40020277567609 is 90676577202004.

40020277567609 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., 24933244622400 + 15087032945209 = 4993320^2 + 3884203^2 .

It is a cyclic number.

It is not a de Polignac number, because 40020277567609 - 2¹³ = 40020277559417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40020277567609.

It is not a weakly prime, because it can be changed into another prime (40020277567409) 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, 20010138783804 + 20010138783805.

It is an arithmetic number, because the mean of its divisors is an integer number (20010138783805).

Almost surely, 2^{40020277567609} is an apocalyptic number.

It is an amenable number.

40020277567609 is a deficient number, since it is larger than the sum of its proper divisors (1).

40020277567609 is an equidigital number, since it uses as much as digits as its factorization.

40020277567609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 55.

The spelling of 40020277567609 in words is "forty trillion, twenty billion, two hundred seventy-seven million, five hundred sixty-seven thousand, six hundred nine".