2018299391 has 2 divisors, whose sum is σ = 2018299392. Its totient is φ = 2018299390.

The previous prime is 2018299379. The next prime is 2018299417. The reversal of 2018299391 is 1939928102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2018299391 - 2¹⁸ = 2018037247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018299291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009149695 + 1009149696.

It is an arithmetic number, because the mean of its divisors is an integer number (1009149696).

Almost surely, 2^2018299391 is an apocalyptic number.

2018299391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018299391 is an equidigital number, since it uses as much as digits as its factorization.

2018299391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 2018299391 is about 44925.4870980828. The cubic root of 2018299391 is about 1263.7520207914.

The spelling of 2018299391 in words is "two billion, eighteen million, two hundred ninety-nine thousand, three hundred ninety-one".