2018403913 has 2 divisors, whose sum is σ = 2018403914. Its totient is φ = 2018403912.

The previous prime is 2018403901. The next prime is 2018403923. The reversal of 2018403913 is 3193048102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1239603264 + 778800649 = 35208^2 + 27907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2018403913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2018403923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009201956 + 1009201957.

It is an arithmetic number, because the mean of its divisors is an integer number (1009201957).

Almost surely, 2^2018403913 is an apocalyptic number.

It is an amenable number.

2018403913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018403913 is an equidigital number, since it uses as much as digits as its factorization.

2018403913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2018403913 is about 44926.6503647890. The cubic root of 2018403913 is about 1263.7738357923.

The spelling of 2018403913 in words is "two billion, eighteen million, four hundred three thousand, nine hundred thirteen".