654884488469 has 2 divisors, whose sum is σ = 654884488470. Its totient is φ = 654884488468.

The previous prime is 654884488361. The next prime is 654884488529. The reversal of 654884488469 is 964884488456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 450458430244 + 204426058225 = 671162^2 + 452135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654884488469 is a prime.

It is a super-2 number, since 2×654884488469² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 654884488396 and 654884488405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654884488669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327442244234 + 327442244235.

It is an arithmetic number, because the mean of its divisors is an integer number (327442244235).

Almost surely, 2^654884488469 is an apocalyptic number.

It is an amenable number.

654884488469 is a deficient number, since it is larger than the sum of its proper divisors (1).

654884488469 is an equidigital number, since it uses as much as digits as its factorization.

654884488469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1698693120, while the sum is 74.

The spelling of 654884488469 in words is "six hundred fifty-four billion, eight hundred eighty-four million, four hundred eighty-eight thousand, four hundred sixty-nine".