204717732851 has 2 divisors, whose sum is σ = 204717732852. Its totient is φ = 204717732850.

The previous prime is 204717732833. The next prime is 204717732859. The reversal of 204717732851 is 158237717402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204717732851 - 2⁶ = 204717732787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204717732796 and 204717732805.

It is not a weakly prime, because it can be changed into another prime (204717732859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102358866425 + 102358866426.

It is an arithmetic number, because the mean of its divisors is an integer number (102358866426).

Almost surely, 2^204717732851 is an apocalyptic number.

204717732851 is a deficient number, since it is larger than the sum of its proper divisors (1).

204717732851 is an equidigital number, since it uses as much as digits as its factorization.

204717732851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 204717732851 in words is "two hundred four billion, seven hundred seventeen million, seven hundred thirty-two thousand, eight hundred fifty-one".