687096817063 has 2 divisors, whose sum is σ = 687096817064. Its totient is φ = 687096817062.

The previous prime is 687096817031. The next prime is 687096817103. The reversal of 687096817063 is 360718690786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 687096817063 - 2⁵ = 687096817031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687096816992 and 687096817010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687096812063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343548408531 + 343548408532.

It is an arithmetic number, because the mean of its divisors is an integer number (343548408532).

Almost surely, 2^687096817063 is an apocalyptic number.

687096817063 is a deficient number, since it is larger than the sum of its proper divisors (1).

687096817063 is an equidigital number, since it uses as much as digits as its factorization.

687096817063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 687096817063 in words is "six hundred eighty-seven billion, ninety-six million, eight hundred seventeen thousand, sixty-three".