40210544281 has 2 divisors, whose sum is σ = 40210544282. Its totient is φ = 40210544280.

The previous prime is 40210544267. The next prime is 40210544321. The reversal of 40210544281 is 18244501204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39140665600 + 1069878681 = 197840^2 + 32709^2 .

It is a cyclic number.

It is not a de Polignac number, because 40210544281 - 2¹¹ = 40210542233 is a prime.

It is a super-2 number, since 2×40210544281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40210544981) 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, 20105272140 + 20105272141.

It is an arithmetic number, because the mean of its divisors is an integer number (20105272141).

Almost surely, 2^40210544281 is an apocalyptic number.

It is an amenable number.

40210544281 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210544281 is an equidigital number, since it uses as much as digits as its factorization.

40210544281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 31.

The spelling of 40210544281 in words is "forty billion, two hundred ten million, five hundred forty-four thousand, two hundred eighty-one".