793827663781 has 2 divisors, whose sum is σ = 793827663782. Its totient is φ = 793827663780.

The previous prime is 793827663757. The next prime is 793827663833. The reversal of 793827663781 is 187366728397.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567070747681 + 226756916100 = 753041^2 + 476190^2 .

It is a cyclic number.

It is not a de Polignac number, because 793827663781 - 2⁹ = 793827663269 is a prime.

It is a super-2 number, since 2×793827663781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (793827663701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396913831890 + 396913831891.

It is an arithmetic number, because the mean of its divisors is an integer number (396913831891).

Almost surely, 2^793827663781 is an apocalyptic number.

It is an amenable number.

793827663781 is a deficient number, since it is larger than the sum of its proper divisors (1).

793827663781 is an equidigital number, since it uses as much as digits as its factorization.

793827663781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128024064, while the sum is 67.

The spelling of 793827663781 in words is "seven hundred ninety-three billion, eight hundred twenty-seven million, six hundred sixty-three thousand, seven hundred eighty-one".