200198209451 has 2 divisors, whose sum is σ = 200198209452. Its totient is φ = 200198209450.

The previous prime is 200198209433. The next prime is 200198209567. The reversal of 200198209451 is 154902891002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200198209451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200198209399 and 200198209408.

It is not a weakly prime, because it can be changed into another prime (200198209151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100099104725 + 100099104726.

It is an arithmetic number, because the mean of its divisors is an integer number (100099104726).

Almost surely, 2^200198209451 is an apocalyptic number.

200198209451 is a deficient number, since it is larger than the sum of its proper divisors (1).

200198209451 is an equidigital number, since it uses as much as digits as its factorization.

200198209451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 200198209451 in words is "two hundred billion, one hundred ninety-eight million, two hundred nine thousand, four hundred fifty-one".