685906697176 has 16 divisors (see below), whose sum is σ = 1341991364400. Its totient is φ = 328042333344.

The previous prime is 685906697167. The next prime is 685906697183. The reversal of 685906697176 is 671796609586.

It is a congruent number.

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, 1863876711 + ... + 1863877078.

It is an arithmetic number, because the mean of its divisors is an integer number (83874460275).

Almost surely, 2^685906697176 is an apocalyptic number.

It is an amenable number.

685906697176 is a deficient number, since it is larger than the sum of its proper divisors (656084667224).

685906697176 is a wasteful number, since it uses less digits than its factorization.

685906697176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727753818 (or 3727753814 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 70.

The spelling of 685906697176 in words is "six hundred eighty-five billion, nine hundred six million, six hundred ninety-seven thousand, one hundred seventy-six".