200642720459 has 2 divisors, whose sum is σ = 200642720460. Its totient is φ = 200642720458.

The previous prime is 200642720357. The next prime is 200642720461. The reversal of 200642720459 is 954027246002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200642720459 is a prime.

Together with 200642720461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200642720479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100321360229 + 100321360230.

It is an arithmetic number, because the mean of its divisors is an integer number (100321360230).

Almost surely, 2^200642720459 is an apocalyptic number.

200642720459 is a deficient number, since it is larger than the sum of its proper divisors (1).

200642720459 is an equidigital number, since it uses as much as digits as its factorization.

200642720459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 200642720459 in words is "two hundred billion, six hundred forty-two million, seven hundred twenty thousand, four hundred fifty-nine".