70940223689 has 4 divisors (see below), whose sum is σ = 70941957060. Its totient is φ = 70938490320.

The previous prime is 70940223647. The next prime is 70940223709. The reversal of 70940223689 is 98632204907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23728321600 + 47211902089 = 154040^2 + 217283^2 .

It is a cyclic number.

It is not a de Polignac number, because 70940223689 - 2¹² = 70940219593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70940223989) 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, 803774 + ... + 887655.

It is an arithmetic number, because the mean of its divisors is an integer number (17735489265).

Almost surely, 2^70940223689 is an apocalyptic number.

It is an amenable number.

70940223689 is a deficient number, since it is larger than the sum of its proper divisors (1733371).

70940223689 is a wasteful number, since it uses less digits than its factorization.

70940223689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733370.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 70940223689 in words is "seventy billion, nine hundred forty million, two hundred twenty-three thousand, six hundred eighty-nine".