654246414649 has 2 divisors, whose sum is σ = 654246414650. Its totient is φ = 654246414648.

The previous prime is 654246414629. The next prime is 654246414677. The reversal of 654246414649 is 946414642456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400992897600 + 253253517049 = 633240^2 + 503243^2 .

It is a cyclic number.

It is not a de Polignac number, because 654246414649 - 2⁵ = 654246414617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654246414649.

It is not a weakly prime, because it can be changed into another prime (654246414629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327123207324 + 327123207325.

It is an arithmetic number, because the mean of its divisors is an integer number (327123207325).

Almost surely, 2^654246414649 is an apocalyptic number.

It is an amenable number.

654246414649 is a deficient number, since it is larger than the sum of its proper divisors (1).

654246414649 is an equidigital number, since it uses as much as digits as its factorization.

654246414649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19906560, while the sum is 55.

The spelling of 654246414649 in words is "six hundred fifty-four billion, two hundred forty-six million, four hundred fourteen thousand, six hundred forty-nine".