686285847429 has 24 divisors (see below), whose sum is σ = 1146323616480. Its totient is φ = 361996929504.

The previous prime is 686285847407. The next prime is 686285847463. The reversal of 686285847429 is 924748582686.

It is not a de Polignac number, because 686285847429 - 2¹² = 686285843333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686285847469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179560059 + ... + 179563880.

It is an arithmetic number, because the mean of its divisors is an integer number (47763484020).

Almost surely, 2^686285847429 is an apocalyptic number.

It is an amenable number.

686285847429 is a deficient number, since it is larger than the sum of its proper divisors (460037769051).

686285847429 is a wasteful number, since it uses less digits than its factorization.

686285847429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359123969 (or 359123962 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 69.

The spelling of 686285847429 in words is "six hundred eighty-six billion, two hundred eighty-five million, eight hundred forty-seven thousand, four hundred twenty-nine".