40881257867 has 2 divisors, whose sum is σ = 40881257868. Its totient is φ = 40881257866.

The previous prime is 40881257849. The next prime is 40881257873. The reversal of 40881257867 is 76875218804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40881257867 - 2¹⁴ = 40881241483 is a prime.

It is not a weakly prime, because it can be changed into another prime (40881257887) 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, 20440628933 + 20440628934.

It is an arithmetic number, because the mean of its divisors is an integer number (20440628934).

Almost surely, 2^40881257867 is an apocalyptic number.

40881257867 is a deficient number, since it is larger than the sum of its proper divisors (1).

40881257867 is an equidigital number, since it uses as much as digits as its factorization.

40881257867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 40881257867 in words is "forty billion, eight hundred eighty-one million, two hundred fifty-seven thousand, eight hundred sixty-seven".