918364770017281 has 2 divisors, whose sum is σ = 918364770017282. Its totient is φ = 918364770017280.

The previous prime is 918364770017183. The next prime is 918364770017347. The reversal of 918364770017281 is 182710077463819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539229702542400 + 379135067474881 = 23221320^2 + 19471391^2 .

It is a cyclic number.

It is not a de Polignac number, because 918364770017281 - 2¹⁵ = 918364769984513 is a prime.

It is a super-2 number, since 2×918364770017281² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (918364770047281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459182385008640 + 459182385008641.

It is an arithmetic number, because the mean of its divisors is an integer number (459182385008641).

Almost surely, 2^{918364770017281} is an apocalyptic number.

It is an amenable number.

918364770017281 is a deficient number, since it is larger than the sum of its proper divisors (1).

918364770017281 is an equidigital number, since it uses as much as digits as its factorization.

918364770017281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28449792, while the sum is 64.

The spelling of 918364770017281 in words is "nine hundred eighteen trillion, three hundred sixty-four billion, seven hundred seventy million, seventeen thousand, two hundred eighty-one".