1780038510113 has 2 divisors, whose sum is σ = 1780038510114. Its totient is φ = 1780038510112.

The previous prime is 1780038510043. The next prime is 1780038510191. The reversal of 1780038510113 is 3110158300871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 966412861969 + 813625648144 = 983063^2 + 902012^2 .

It is a cyclic number.

It is not a de Polignac number, because 1780038510113 - 2²² = 1780034315809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1780038500113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890019255056 + 890019255057.

It is an arithmetic number, because the mean of its divisors is an integer number (890019255057).

Almost surely, 2^{1780038510113} is an apocalyptic number.

It is an amenable number.

1780038510113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1780038510113 is an equidigital number, since it uses as much as digits as its factorization.

1780038510113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 1780038510113 in words is "one trillion, seven hundred eighty billion, thirty-eight million, five hundred ten thousand, one hundred thirteen".