840280302611 has 2 divisors, whose sum is σ = 840280302612. Its totient is φ = 840280302610.

The previous prime is 840280302601. The next prime is 840280302661. The reversal of 840280302611 is 116203082048.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-840280302611 is a prime.

It is not a weakly prime, because it can be changed into another prime (840280302601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420140151305 + 420140151306.

It is an arithmetic number, because the mean of its divisors is an integer number (420140151306).

Almost surely, 2^840280302611 is an apocalyptic number.

840280302611 is a deficient number, since it is larger than the sum of its proper divisors (1).

840280302611 is an equidigital number, since it uses as much as digits as its factorization.

840280302611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 35.

Adding to 840280302611 its reverse (116203082048), we get a palindrome (956483384659).

The spelling of 840280302611 in words is "eight hundred forty billion, two hundred eighty million, three hundred two thousand, six hundred eleven".