768748783357 has 2 divisors, whose sum is σ = 768748783358. Its totient is φ = 768748783356.

The previous prime is 768748783349. The next prime is 768748783367. The reversal of 768748783357 is 753387847867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607642076196 + 161106707161 = 779514^2 + 401381^2 .

It is a cyclic number.

It is not a de Polignac number, because 768748783357 - 2³ = 768748783349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 768748783357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768748783337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384374391678 + 384374391679.

It is an arithmetic number, because the mean of its divisors is an integer number (384374391679).

Almost surely, 2^768748783357 is an apocalyptic number.

It is an amenable number.

768748783357 is a deficient number, since it is larger than the sum of its proper divisors (1).

768748783357 is an equidigital number, since it uses as much as digits as its factorization.

768748783357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327656960, while the sum is 73.

The spelling of 768748783357 in words is "seven hundred sixty-eight billion, seven hundred forty-eight million, seven hundred eighty-three thousand, three hundred fifty-seven".