768161893 has 2 divisors, whose sum is σ = 768161894. Its totient is φ = 768161892.

The previous prime is 768161819. The next prime is 768161917. The reversal of 768161893 is 398161867.

768161893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 557998884 + 210163009 = 23622^2 + 14497^2 .

It is a cyclic number.

It is not a de Polignac number, because 768161893 - 2¹⁷ = 768030821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768162893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384080946 + 384080947.

It is an arithmetic number, because the mean of its divisors is an integer number (384080947).

Almost surely, 2^768161893 is an apocalyptic number.

It is an amenable number.

768161893 is a deficient number, since it is larger than the sum of its proper divisors (1).

768161893 is an equidigital number, since it uses as much as digits as its factorization.

768161893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 768161893 is about 27715.7336724107. The cubic root of 768161893 is about 915.8357371686.

The spelling of 768161893 in words is "seven hundred sixty-eight million, one hundred sixty-one thousand, eight hundred ninety-three".