706427618249 has 4 divisors (see below), whose sum is σ = 706434700164. Its totient is φ = 706420536336.

The previous prime is 706427618191. The next prime is 706427618293. The reversal of 706427618249 is 942816724607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942816724607 = 36943 ⋅25520849.

It can be written as a sum of positive squares in 2 ways, for example, as 609230203024 + 97197415225 = 780532^2 + 311765^2 .

It is a cyclic number.

It is not a de Polignac number, because 706427618249 - 2²⁴ = 706410841033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 706427618194 and 706427618203.

It is not an unprimeable number, because it can be changed into a prime (706427638249) by changing a digit.

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, 3389162 + ... + 3591555.

It is an arithmetic number, because the mean of its divisors is an integer number (176608675041).

Almost surely, 2^706427618249 is an apocalyptic number.

It is an amenable number.

706427618249 is a deficient number, since it is larger than the sum of its proper divisors (7081915).

706427618249 is a wasteful number, since it uses less digits than its factorization.

706427618249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081914.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 706427618249 in words is "seven hundred six billion, four hundred twenty-seven million, six hundred eighteen thousand, two hundred forty-nine".