2018315617 has 2 divisors, whose sum is σ = 2018315618. Its totient is φ = 2018315616.

The previous prime is 2018315597. The next prime is 2018315659. The reversal of 2018315617 is 7165138102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1476403776 + 541911841 = 38424^2 + 23279^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018315617 - 2¹⁹ = 2017791329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2018315317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009157808 + 1009157809.

It is an arithmetic number, because the mean of its divisors is an integer number (1009157809).

Almost surely, 2^2018315617 is an apocalyptic number.

It is an amenable number.

2018315617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018315617 is an equidigital number, since it uses as much as digits as its factorization.

2018315617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 2018315617 is about 44925.6676856338. The cubic root of 2018315617 is about 1263.7554074025.

The spelling of 2018315617 in words is "two billion, eighteen million, three hundred fifteen thousand, six hundred seventeen".