706109880785 has 4 divisors (see below), whose sum is σ = 847331856948. Its totient is φ = 564887904624.

The previous prime is 706109880719. The next prime is 706109880787. The reversal of 706109880785 is 587088901607.

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 221024097424 + 485085783361 = 470132^2 + 696481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706109880785 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706109880787) 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, 70610988074 + ... + 70610988083.

It is an arithmetic number, because the mean of its divisors is an integer number (211832964237).

Almost surely, 2^706109880785 is an apocalyptic number.

It is an amenable number.

706109880785 is a deficient number, since it is larger than the sum of its proper divisors (141221976163).

706109880785 is a wasteful number, since it uses less digits than its factorization.

706109880785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141221976162.

The product of its (nonzero) digits is 6773760, while the sum is 59.

The spelling of 706109880785 in words is "seven hundred six billion, one hundred nine million, eight hundred eighty thousand, seven hundred eighty-five".