2040384001813 has 2 divisors, whose sum is σ = 2040384001814. Its totient is φ = 2040384001812.

The previous prime is 2040384001807. The next prime is 2040384001829. The reversal of 2040384001813 is 3181004830402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1057734085444 + 982649916369 = 1028462^2 + 991287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040384001813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040384001883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020192000906 + 1020192000907.

It is an arithmetic number, because the mean of its divisors is an integer number (1020192000907).

Almost surely, 2^{2040384001813} is an apocalyptic number.

It is an amenable number.

2040384001813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040384001813 is an equidigital number, since it uses as much as digits as its factorization.

2040384001813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 2040384001813 in words is "two trillion, forty billion, three hundred eighty-four million, one thousand, eight hundred thirteen".