40544135287 has 2 divisors, whose sum is σ = 40544135288. Its totient is φ = 40544135286.

The previous prime is 40544135189. The next prime is 40544135297. The reversal of 40544135287 is 78253144504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40544135287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40544135297) 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, 20272067643 + 20272067644.

It is an arithmetic number, because the mean of its divisors is an integer number (20272067644).

Almost surely, 2^40544135287 is an apocalyptic number.

40544135287 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544135287 is an equidigital number, since it uses as much as digits as its factorization.

40544135287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 40544135287 in words is "forty billion, five hundred forty-four million, one hundred thirty-five thousand, two hundred eighty-seven".