650151942449 has 2 divisors, whose sum is σ = 650151942450. Its totient is φ = 650151942448.

The previous prime is 650151942383. The next prime is 650151942481. The reversal of 650151942449 is 944249151056.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650151942400 + 49 = 806320^2 + 7^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650151942449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 650151942397 and 650151942406.

It is not a weakly prime, because it can be changed into another prime (640151942449) 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, 325075971224 + 325075971225.

It is an arithmetic number, because the mean of its divisors is an integer number (325075971225).

Almost surely, 2^650151942449 is an apocalyptic number.

It is an amenable number.

650151942449 is a deficient number, since it is larger than the sum of its proper divisors (1).

650151942449 is an equidigital number, since it uses as much as digits as its factorization.

650151942449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 50.

It can be divided in two parts, 6501519424 and 49, that multiplied together give a square (318574451776 = 564424²).

The spelling of 650151942449 in words is "six hundred fifty billion, one hundred fifty-one million, nine hundred forty-two thousand, four hundred forty-nine".