40884489991 has 2 divisors, whose sum is σ = 40884489992. Its totient is φ = 40884489990.

The previous prime is 40884489953. The next prime is 40884490007. The reversal of 40884489991 is 19998448804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40884489991 - 2¹⁵ = 40884457223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40884481991) 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, 20442244995 + 20442244996.

It is an arithmetic number, because the mean of its divisors is an integer number (20442244996).

Almost surely, 2^40884489991 is an apocalyptic number.

40884489991 is a deficient number, since it is larger than the sum of its proper divisors (1).

40884489991 is an equidigital number, since it uses as much as digits as its factorization.

40884489991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 40884489991 in words is "forty billion, eight hundred eighty-four million, four hundred eighty-nine thousand, nine hundred ninety-one".