1768460378393 has 2 divisors, whose sum is σ = 1768460378394. Its totient is φ = 1768460378392.

The previous prime is 1768460378357. The next prime is 1768460378431. The reversal of 1768460378393 is 3938730648671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1411731314569 + 356729063824 = 1188163^2 + 597268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1768460378393 - 2⁶ = 1768460378329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1768460378093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884230189196 + 884230189197.

It is an arithmetic number, because the mean of its divisors is an integer number (884230189197).

Almost surely, 2^{1768460378393} is an apocalyptic number.

It is an amenable number.

1768460378393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768460378393 is an equidigital number, since it uses as much as digits as its factorization.

1768460378393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109734912, while the sum is 65.

The spelling of 1768460378393 in words is "one trillion, seven hundred sixty-eight billion, four hundred sixty million, three hundred seventy-eight thousand, three hundred ninety-three".