70986446705 has 4 divisors (see below), whose sum is σ = 85183736052. Its totient is φ = 56789157360.

The previous prime is 70986446677. The next prime is 70986446731. The reversal of 70986446705 is 50764468907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50764468907 = 19 ⋅2671814153.

It can be written as a sum of positive squares in 2 ways, for example, as 19718618929 + 51267827776 = 140423^2 + 226424^2 .

It is not a de Polignac number, because 70986446705 - 2²⁰ = 70985398129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7098644666 + ... + 7098644675.

It is an arithmetic number, because the mean of its divisors is an integer number (21295934013).

Almost surely, 2^70986446705 is an apocalyptic number.

It is an amenable number.

70986446705 is a deficient number, since it is larger than the sum of its proper divisors (14197289347).

70986446705 is a wasteful number, since it uses less digits than its factorization.

70986446705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14197289346.

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 70986446705 in words is "seventy billion, nine hundred eighty-six million, four hundred forty-six thousand, seven hundred five".