611631820883 has 2 divisors, whose sum is σ = 611631820884. Its totient is φ = 611631820882.

The previous prime is 611631820799. The next prime is 611631820901. The reversal of 611631820883 is 388028136116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611631820883 - 2¹⁰ = 611631819859 is a prime.

It is not a weakly prime, because it can be changed into another prime (611631820183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305815910441 + 305815910442.

It is an arithmetic number, because the mean of its divisors is an integer number (305815910442).

Almost surely, 2^611631820883 is an apocalyptic number.

611631820883 is a deficient number, since it is larger than the sum of its proper divisors (1).

611631820883 is an equidigital number, since it uses as much as digits as its factorization.

611631820883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 47.

Adding to 611631820883 its reverse (388028136116), we get a palindrome (999659956999).

The spelling of 611631820883 in words is "six hundred eleven billion, six hundred thirty-one million, eight hundred twenty thousand, eight hundred eighty-three".