654245633831 has 2 divisors, whose sum is σ = 654245633832. Its totient is φ = 654245633830.

The previous prime is 654245633809. The next prime is 654245633849. The reversal of 654245633831 is 138336542456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654245633831 - 2¹⁸ = 654245371687 is a prime.

It is a super-2 number, since 2×654245633831² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 654245633831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654245623831) 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, 327122816915 + 327122816916.

It is an arithmetic number, because the mean of its divisors is an integer number (327122816916).

Almost surely, 2^654245633831 is an apocalyptic number.

654245633831 is a deficient number, since it is larger than the sum of its proper divisors (1).

654245633831 is an equidigital number, since it uses as much as digits as its factorization.

654245633831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 50.

The spelling of 654245633831 in words is "six hundred fifty-four billion, two hundred forty-five million, six hundred thirty-three thousand, eight hundred thirty-one".