685774453226 has 8 divisors (see below), whose sum is σ = 1028669518404. Its totient is φ = 342884613760.

The previous prime is 685774453219. The next prime is 685774453249. The reversal of 685774453226 is 622354477586.

It is a Cunningham number, because it is equal to 828115²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 685774453225 + 1 = 828115^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959975 + ... + 1514298.

Almost surely, 2^685774453226 is an apocalyptic number.

685774453226 is a deficient number, since it is larger than the sum of its proper divisors (342895065178).

685774453226 is a wasteful number, since it uses less digits than its factorization.

685774453226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612856.

The product of its digits is 67737600, while the sum is 59.

The spelling of 685774453226 in words is "six hundred eighty-five billion, seven hundred seventy-four million, four hundred fifty-three thousand, two hundred twenty-six".