285648498097 has 2 divisors, whose sum is σ = 285648498098. Its totient is φ = 285648498096.

The previous prime is 285648498077. The next prime is 285648498131. The reversal of 285648498097 is 790894846582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143854076961 + 141794421136 = 379281^2 + 376556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285648498097 is a prime.

It is not a weakly prime, because it can be changed into another prime (285648498007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142824249048 + 142824249049.

It is an arithmetic number, because the mean of its divisors is an integer number (142824249049).

Almost surely, 2^285648498097 is an apocalyptic number.

It is an amenable number.

285648498097 is a deficient number, since it is larger than the sum of its proper divisors (1).

285648498097 is an equidigital number, since it uses as much as digits as its factorization.

285648498097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 278691840, while the sum is 70.

The spelling of 285648498097 in words is "two hundred eighty-five billion, six hundred forty-eight million, four hundred ninety-eight thousand, ninety-seven".