803680713281 has 2 divisors, whose sum is σ = 803680713282. Its totient is φ = 803680713280.

The previous prime is 803680713203. The next prime is 803680713289. The reversal of 803680713281 is 182317086308.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575754676225 + 227926037056 = 758785^2 + 477416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-803680713281 is a prime.

It is a super-2 number, since 2×803680713281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (803680713289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401840356640 + 401840356641.

It is an arithmetic number, because the mean of its divisors is an integer number (401840356641).

Almost surely, 2^803680713281 is an apocalyptic number.

It is an amenable number.

803680713281 is a deficient number, since it is larger than the sum of its proper divisors (1).

803680713281 is an equidigital number, since it uses as much as digits as its factorization.

803680713281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

Adding to 803680713281 its reverse (182317086308), we get a palindrome (985997799589).

The spelling of 803680713281 in words is "eight hundred three billion, six hundred eighty million, seven hundred thirteen thousand, two hundred eighty-one".