40144401067 has 2 divisors, whose sum is σ = 40144401068. Its totient is φ = 40144401066.

The previous prime is 40144401061. The next prime is 40144401079. The reversal of 40144401067 is 76010444104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40144401067 - 2³¹ = 37996917419 is a prime.

It is a super-2 number, since 2×40144401067² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40144401061) 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, 20072200533 + 20072200534.

It is an arithmetic number, because the mean of its divisors is an integer number (20072200534).

Almost surely, 2^40144401067 is an apocalyptic number.

40144401067 is a deficient number, since it is larger than the sum of its proper divisors (1).

40144401067 is an equidigital number, since it uses as much as digits as its factorization.

40144401067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 40144401067 in words is "forty billion, one hundred forty-four million, four hundred one thousand, sixty-seven".