775657848253 has 2 divisors, whose sum is σ = 775657848254. Its totient is φ = 775657848252.

The previous prime is 775657848227. The next prime is 775657848271. The reversal of 775657848253 is 352848756577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421255517764 + 354402330489 = 649042^2 + 595317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-775657848253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775657848653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387828924126 + 387828924127.

It is an arithmetic number, because the mean of its divisors is an integer number (387828924127).

Almost surely, 2^775657848253 is an apocalyptic number.

It is an amenable number.

775657848253 is a deficient number, since it is larger than the sum of its proper divisors (1).

775657848253 is an equidigital number, since it uses as much as digits as its factorization.

775657848253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136000, while the sum is 67.

The spelling of 775657848253 in words is "seven hundred seventy-five billion, six hundred fifty-seven million, eight hundred forty-eight thousand, two hundred fifty-three".