680802437527 has 2 divisors, whose sum is σ = 680802437528. Its totient is φ = 680802437526.

The previous prime is 680802437453. The next prime is 680802437569. The reversal of 680802437527 is 725734208086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680802437527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680802437027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340401218763 + 340401218764.

It is an arithmetic number, because the mean of its divisors is an integer number (340401218764).

Almost surely, 2^680802437527 is an apocalyptic number.

680802437527 is a deficient number, since it is larger than the sum of its proper divisors (1).

680802437527 is an equidigital number, since it uses as much as digits as its factorization.

680802437527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 680802437527 in words is "six hundred eighty billion, eight hundred two million, four hundred thirty-seven thousand, five hundred twenty-seven".