687237383263 has 2 divisors, whose sum is σ = 687237383264. Its totient is φ = 687237383262.

The previous prime is 687237383251. The next prime is 687237383279. The reversal of 687237383263 is 362383732786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 687237383263 - 2⁹ = 687237382751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687237383198 and 687237383207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687237383233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343618691631 + 343618691632.

It is an arithmetic number, because the mean of its divisors is an integer number (343618691632).

Almost surely, 2^687237383263 is an apocalyptic number.

687237383263 is a deficient number, since it is larger than the sum of its proper divisors (1).

687237383263 is an equidigital number, since it uses as much as digits as its factorization.

687237383263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 58.

The spelling of 687237383263 in words is "six hundred eighty-seven billion, two hundred thirty-seven million, three hundred eighty-three thousand, two hundred sixty-three".