70369817919409 has 2 divisors, whose sum is σ = 70369817919410. Its totient is φ = 70369817919408.

The previous prime is 70369817919371. The next prime is 70369817919439. The reversal of 70369817919409 is 90491971896307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69755436288784 + 614381630625 = 8351972^2 + 783825^2 .

It is a cyclic number.

It is not a de Polignac number, because 70369817919409 - 2⁷ = 70369817919281 is a prime.

It is a super-2 number, since 2×70369817919409² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70369817919439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35184908959704 + 35184908959705.

It is an arithmetic number, because the mean of its divisors is an integer number (35184908959705).

Almost surely, 2^{70369817919409} is an apocalyptic number.

It is an amenable number.

70369817919409 is a deficient number, since it is larger than the sum of its proper divisors (1).

70369817919409 is an equidigital number, since it uses as much as digits as its factorization.

70369817919409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185177664, while the sum is 73.

The spelling of 70369817919409 in words is "seventy trillion, three hundred sixty-nine billion, eight hundred seventeen million, nine hundred nineteen thousand, four hundred nine".