40271256631 has 2 divisors, whose sum is σ = 40271256632. Its totient is φ = 40271256630.

The previous prime is 40271256607. The next prime is 40271256661. The reversal of 40271256631 is 13665217204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40271256631 - 2¹⁹ = 40270732343 is a prime.

It is a super-2 number, since 2×40271256631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40271256601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20135628315 + 20135628316.

It is an arithmetic number, because the mean of its divisors is an integer number (20135628316).

Almost surely, 2^40271256631 is an apocalyptic number.

40271256631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40271256631 is an equidigital number, since it uses as much as digits as its factorization.

40271256631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 40271256631 in words is "forty billion, two hundred seventy-one million, two hundred fifty-six thousand, six hundred thirty-one".