70508551109 has 4 divisors (see below), whose sum is σ = 71023212204. Its totient is φ = 69993890016.

The previous prime is 70508551051. The next prime is 70508551111. The reversal of 70508551109 is 90115580507.

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 12701966209 + 57806584900 = 112703^2 + 240430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70508551109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70508551189) 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, 257330342 + ... + 257330615.

It is an arithmetic number, because the mean of its divisors is an integer number (17755803051).

Almost surely, 2^70508551109 is an apocalyptic number.

It is an amenable number.

70508551109 is a deficient number, since it is larger than the sum of its proper divisors (514661095).

70508551109 is a wasteful number, since it uses less digits than its factorization.

70508551109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514661094.

The product of its (nonzero) digits is 63000, while the sum is 41.

The spelling of 70508551109 in words is "seventy billion, five hundred eight million, five hundred fifty-one thousand, one hundred nine".