140044261991 has 2 divisors, whose sum is σ = 140044261992. Its totient is φ = 140044261990.

The previous prime is 140044261979. The next prime is 140044261997. The reversal of 140044261991 is 199162440041.

140044261991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140044261991 - 2⁶ = 140044261927 is a prime.

It is a super-2 number, since 2×140044261991² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140044261997) 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, 70022130995 + 70022130996.

It is an arithmetic number, because the mean of its divisors is an integer number (70022130996).

Almost surely, 2^140044261991 is an apocalyptic number.

140044261991 is a deficient number, since it is larger than the sum of its proper divisors (1).

140044261991 is an equidigital number, since it uses as much as digits as its factorization.

140044261991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 140044261991 in words is "one hundred forty billion, forty-four million, two hundred sixty-one thousand, nine hundred ninety-one".