204154464947 has 2 divisors, whose sum is σ = 204154464948. Its totient is φ = 204154464946.

The previous prime is 204154464937. The next prime is 204154465057. The reversal of 204154464947 is 749464451402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204154464947 - 2¹⁶ = 204154399411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204154464895 and 204154464904.

It is not a weakly prime, because it can be changed into another prime (204154464937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102077232473 + 102077232474.

It is an arithmetic number, because the mean of its divisors is an integer number (102077232474).

Almost surely, 2^204154464947 is an apocalyptic number.

204154464947 is a deficient number, since it is larger than the sum of its proper divisors (1).

204154464947 is an equidigital number, since it uses as much as digits as its factorization.

204154464947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 204154464947 in words is "two hundred four billion, one hundred fifty-four million, four hundred sixty-four thousand, nine hundred forty-seven".