685141212461 has 16 divisors (see below), whose sum is σ = 695629029696. Its totient is φ = 674730000000.

The previous prime is 685141212443. The next prime is 685141212463. The reversal of 685141212461 is 164212141586.

It is a cyclic number.

It is not a de Polignac number, because 685141212461 - 2⁶ = 685141212397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685141212463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38372186 + ... + 38390036.

It is an arithmetic number, because the mean of its divisors is an integer number (43476814356).

Almost surely, 2^685141212461 is an apocalyptic number.

It is an amenable number.

685141212461 is a deficient number, since it is larger than the sum of its proper divisors (10487817235).

685141212461 is a wasteful number, since it uses less digits than its factorization.

685141212461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19964.

The product of its digits is 92160, while the sum is 41.

The spelling of 685141212461 in words is "six hundred eighty-five billion, one hundred forty-one million, two hundred twelve thousand, four hundred sixty-one".