680071336387 has 2 divisors, whose sum is σ = 680071336388. Its totient is φ = 680071336386.

The previous prime is 680071336367. The next prime is 680071336409. The reversal of 680071336387 is 783633170086.

It is a happy number.

680071336387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680071336387 is a prime.

It is a super-2 number, since 2×680071336387² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (680071336367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340035668193 + 340035668194.

It is an arithmetic number, because the mean of its divisors is an integer number (340035668194).

Almost surely, 2^680071336387 is an apocalyptic number.

680071336387 is a deficient number, since it is larger than the sum of its proper divisors (1).

680071336387 is an equidigital number, since it uses as much as digits as its factorization.

680071336387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 680071336387 in words is "six hundred eighty billion, seventy-one million, three hundred thirty-six thousand, three hundred eighty-seven".