40540522289 has 2 divisors, whose sum is σ = 40540522290. Its totient is φ = 40540522288.

The previous prime is 40540522271. The next prime is 40540522327. The reversal of 40540522289 is 98222504504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28813365025 + 11727157264 = 169745^2 + 108292^2 .

It is a cyclic number.

It is not a de Polignac number, because 40540522289 - 2³² = 36245554993 is a prime.

It is not a weakly prime, because it can be changed into another prime (40540522229) 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 as a sum of consecutive naturals, namely, 20270261144 + 20270261145.

It is an arithmetic number, because the mean of its divisors is an integer number (20270261145).

Almost surely, 2^40540522289 is an apocalyptic number.

It is an amenable number.

40540522289 is a deficient number, since it is larger than the sum of its proper divisors (1).

40540522289 is an equidigital number, since it uses as much as digits as its factorization.

40540522289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 40540522289 in words is "forty billion, five hundred forty million, five hundred twenty-two thousand, two hundred eighty-nine".