681415119727 has 2 divisors, whose sum is σ = 681415119728. Its totient is φ = 681415119726.

The previous prime is 681415119719. The next prime is 681415119769. The reversal of 681415119727 is 727911514186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 681415119727 - 2³ = 681415119719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (681415119227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340707559863 + 340707559864.

It is an arithmetic number, because the mean of its divisors is an integer number (340707559864).

Almost surely, 2^681415119727 is an apocalyptic number.

681415119727 is a deficient number, since it is larger than the sum of its proper divisors (1).

681415119727 is an equidigital number, since it uses as much as digits as its factorization.

681415119727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 52.

The spelling of 681415119727 in words is "six hundred eighty-one billion, four hundred fifteen million, one hundred nineteen thousand, seven hundred twenty-seven".