40448035663901 has 2 divisors, whose sum is σ = 40448035663902. Its totient is φ = 40448035663900.

The previous prime is 40448035663853. The next prime is 40448035663967. The reversal of 40448035663901 is 10936653084404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34790768656900 + 5657267007001 = 5898370^2 + 2378501^2 .

It is a cyclic number.

It is not a de Polignac number, because 40448035663901 - 2¹⁰ = 40448035662877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40448035665901) 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, 20224017831950 + 20224017831951.

It is an arithmetic number, because the mean of its divisors is an integer number (20224017831951).

Almost surely, 2^{40448035663901} is an apocalyptic number.

It is an amenable number.

40448035663901 is a deficient number, since it is larger than the sum of its proper divisors (1).

40448035663901 is an equidigital number, since it uses as much as digits as its factorization.

40448035663901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 40448035663901 in words is "forty trillion, four hundred forty-eight billion, thirty-five million, six hundred sixty-three thousand, nine hundred one".