140042441400991 has 2 divisors, whose sum is σ = 140042441400992. Its totient is φ = 140042441400990.

The previous prime is 140042441400947. The next prime is 140042441401043. The reversal of 140042441400991 is 199004144240041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140042441400991 - 2²⁹ = 140041904530079 is a prime.

It is a super-2 number, since 2×140042441400991² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140042441407991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70021220700495 + 70021220700496.

It is an arithmetic number, because the mean of its divisors is an integer number (70021220700496).

Almost surely, 2^{140042441400991} is an apocalyptic number.

140042441400991 is a deficient number, since it is larger than the sum of its proper divisors (1).

140042441400991 is an equidigital number, since it uses as much as digits as its factorization.

140042441400991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 140042441400991 in words is "one hundred forty trillion, forty-two billion, four hundred forty-one million, four hundred thousand, nine hundred ninety-one".