686825455053 has 8 divisors (see below), whose sum is σ = 915842700000. Its totient is φ = 457845923408.

The previous prime is 686825455051. The next prime is 686825455091. The reversal of 686825455053 is 350554528686.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 686825455053 - 2¹ = 686825455051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 686825454984 and 686825455002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686825455051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9385803 + ... + 9458696.

It is an arithmetic number, because the mean of its divisors is an integer number (114480337500).

Almost surely, 2^686825455053 is an apocalyptic number.

It is an amenable number.

686825455053 is a deficient number, since it is larger than the sum of its proper divisors (229017244947).

686825455053 is a wasteful number, since it uses less digits than its factorization.

686825455053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18856651.

The product of its (nonzero) digits is 34560000, while the sum is 57.

The spelling of 686825455053 in words is "six hundred eighty-six billion, eight hundred twenty-five million, four hundred fifty-five thousand, fifty-three".