216425698459 has 2 divisors, whose sum is σ = 216425698460. Its totient is φ = 216425698458.

The previous prime is 216425698457. The next prime is 216425698487. The reversal of 216425698459 is 954896524612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216425698459 - 2¹ = 216425698457 is a prime.

Together with 216425698457, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 216425698397 and 216425698406.

It is not a weakly prime, because it can be changed into another prime (216425698457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108212849229 + 108212849230.

It is an arithmetic number, because the mean of its divisors is an integer number (108212849230).

Almost surely, 2^216425698459 is an apocalyptic number.

216425698459 is a deficient number, since it is larger than the sum of its proper divisors (1).

216425698459 is an equidigital number, since it uses as much as digits as its factorization.

216425698459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37324800, while the sum is 61.

The spelling of 216425698459 in words is "two hundred sixteen billion, four hundred twenty-five million, six hundred ninety-eight thousand, four hundred fifty-nine".