685473176764 has 6 divisors (see below), whose sum is σ = 1199578059344. Its totient is φ = 342736588380.

The previous prime is 685473176749. The next prime is 685473176797. The reversal of 685473176764 is 467671374586.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 685473176696 and 685473176705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85684147092 + ... + 85684147099.

Almost surely, 2^685473176764 is an apocalyptic number.

It is an amenable number.

685473176764 is a deficient number, since it is larger than the sum of its proper divisors (514104882580).

685473176764 is a wasteful number, since it uses less digits than its factorization.

685473176764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171368294195 (or 171368294193 counting only the distinct ones).

The product of its digits is 142248960, while the sum is 64.

The spelling of 685473176764 in words is "six hundred eighty-five billion, four hundred seventy-three million, one hundred seventy-six thousand, seven hundred sixty-four".