687189350459 has 2 divisors, whose sum is σ = 687189350460. Its totient is φ = 687189350458.

The previous prime is 687189350363. The next prime is 687189350483. The reversal of 687189350459 is 954053981786.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-687189350459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687189350395 and 687189350404.

It is not a weakly prime, because it can be changed into another prime (687189350359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343594675229 + 343594675230.

It is an arithmetic number, because the mean of its divisors is an integer number (343594675230).

Almost surely, 2^687189350459 is an apocalyptic number.

687189350459 is a deficient number, since it is larger than the sum of its proper divisors (1).

687189350459 is an equidigital number, since it uses as much as digits as its factorization.

687189350459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 687189350459 in words is "six hundred eighty-seven billion, one hundred eighty-nine million, three hundred fifty thousand, four hundred fifty-nine".