70084843109 has 4 divisors (see below), whose sum is σ = 70085779116. Its totient is φ = 70083907104.

The previous prime is 70084843079. The next prime is 70084843111. The reversal of 70084843109 is 90134848007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90134848007 = 41 ⋅2198410927.

It can be written as a sum of positive squares in 2 ways, for example, as 12926553025 + 57158290084 = 113695^2 + 239078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70084843109 is a prime.

It is a super-2 number, since 2×70084843109² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70084843109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70084843009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344894 + ... + 509039.

It is an arithmetic number, because the mean of its divisors is an integer number (17521444779).

Almost surely, 2^70084843109 is an apocalyptic number.

It is an amenable number.

70084843109 is a deficient number, since it is larger than the sum of its proper divisors (936007).

70084843109 is an equidigital number, since it uses as much as digits as its factorization.

70084843109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936006.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 70084843109 in words is "seventy billion, eighty-four million, eight hundred forty-three thousand, one hundred nine".