304985249784997 has 2 divisors, whose sum is σ = 304985249784998. Its totient is φ = 304985249784996.

The previous prime is 304985249784991. The next prime is 304985249785057. The reversal of 304985249784997 is 799487942589403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304889629065921 + 95620719076 = 17461089^2 + 309226^2 .

It is a cyclic number.

It is not a de Polignac number, because 304985249784997 - 2¹⁹ = 304985249260709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304985249784991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152492624892498 + 152492624892499.

It is an arithmetic number, because the mean of its divisors is an integer number (152492624892499).

Almost surely, 2^{304985249784997} is an apocalyptic number.

It is an amenable number.

304985249784997 is a deficient number, since it is larger than the sum of its proper divisors (1).

304985249784997 is an equidigital number, since it uses as much as digits as its factorization.

304985249784997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39504568320, while the sum is 88.

The spelling of 304985249784997 in words is "three hundred four trillion, nine hundred eighty-five billion, two hundred forty-nine million, seven hundred eighty-four thousand, nine hundred ninety-seven".