70423459187 has 4 divisors (see below), whose sum is σ = 70434818520. Its totient is φ = 70412099856.

The previous prime is 70423459177. The next prime is 70423459237. The reversal of 70423459187 is 78195432407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78195432407 = 23 ⋅3399801409.

It is a cyclic number.

It is not a de Polignac number, because 70423459187 - 2³⁴ = 53243590003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70423459177) 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 in 3 ways as a sum of consecutive naturals, for example, 5670362 + ... + 5682767.

It is an arithmetic number, because the mean of its divisors is an integer number (17608704630).

Almost surely, 2^70423459187 is an apocalyptic number.

70423459187 is a deficient number, since it is larger than the sum of its proper divisors (11359333).

70423459187 is a wasteful number, since it uses less digits than its factorization.

70423459187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11359332.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 70423459187 in words is "seventy billion, four hundred twenty-three million, four hundred fifty-nine thousand, one hundred eighty-seven".