40775521607 has 2 divisors, whose sum is σ = 40775521608. Its totient is φ = 40775521606.

The previous prime is 40775521559. The next prime is 40775521609. The reversal of 40775521607 is 70612557704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40775521607 - 2¹⁴ = 40775505223 is a prime.

Together with 40775521609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40775521609) 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, 20387760803 + 20387760804.

It is an arithmetic number, because the mean of its divisors is an integer number (20387760804).

Almost surely, 2^40775521607 is an apocalyptic number.

40775521607 is a deficient number, since it is larger than the sum of its proper divisors (1).

40775521607 is an equidigital number, since it uses as much as digits as its factorization.

40775521607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 40775521607 in words is "forty billion, seven hundred seventy-five million, five hundred twenty-one thousand, six hundred seven".