70223516749 has 2 divisors, whose sum is σ = 70223516750. Its totient is φ = 70223516748.

The previous prime is 70223516747. The next prime is 70223516789. The reversal of 70223516749 is 94761532207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42815058724 + 27408458025 = 206918^2 + 165555^2 .

It is an emirp because it is prime and its reverse (94761532207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70223516749 - 2¹ = 70223516747 is a prime.

Together with 70223516747, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 70223516699 and 70223516708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70223516747) 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, 35111758374 + 35111758375.

It is an arithmetic number, because the mean of its divisors is an integer number (35111758375).

Almost surely, 2^70223516749 is an apocalyptic number.

It is an amenable number.

70223516749 is a deficient number, since it is larger than the sum of its proper divisors (1).

70223516749 is an equidigital number, since it uses as much as digits as its factorization.

70223516749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 70223516749 in words is "seventy billion, two hundred twenty-three million, five hundred sixteen thousand, seven hundred forty-nine".