768773887837 has 2 divisors, whose sum is σ = 768773887838. Its totient is φ = 768773887836.

The previous prime is 768773887771. The next prime is 768773887853. The reversal of 768773887837 is 738788377867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478014600996 + 290759286841 = 691386^2 + 539221^2 .

It is a cyclic number.

It is not a de Polignac number, because 768773887837 - 2³¹ = 766626404189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768773887867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384386943918 + 384386943919.

It is an arithmetic number, because the mean of its divisors is an integer number (384386943919).

Almost surely, 2^768773887837 is an apocalyptic number.

It is an amenable number.

768773887837 is a deficient number, since it is larger than the sum of its proper divisors (1).

768773887837 is an equidigital number, since it uses as much as digits as its factorization.

768773887837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3717439488, while the sum is 79.

The spelling of 768773887837 in words is "seven hundred sixty-eight billion, seven hundred seventy-three million, eight hundred eighty-seven thousand, eight hundred thirty-seven".