10140043655449 has 2 divisors, whose sum is σ = 10140043655450. Its totient is φ = 10140043655448.

The previous prime is 10140043655389. The next prime is 10140043655543. The reversal of 10140043655449 is 94455634004101.

10140043655449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9344986099849 + 795057555600 = 3056957^2 + 891660^2 .

It is a cyclic number.

It is not a de Polignac number, because 10140043655449 - 2²³ = 10140035266841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10140043655399 and 10140043655408.

It is not a weakly prime, because it can be changed into another prime (10140043655849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070021827724 + 5070021827725.

It is an arithmetic number, because the mean of its divisors is an integer number (5070021827725).

Almost surely, 2^{10140043655449} is an apocalyptic number.

It is an amenable number.

10140043655449 is a deficient number, since it is larger than the sum of its proper divisors (1).

10140043655449 is an equidigital number, since it uses as much as digits as its factorization.

10140043655449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 10140043655449 in words is "ten trillion, one hundred forty billion, forty-three million, six hundred fifty-five thousand, four hundred forty-nine".