686545062077466 has 16 divisors (see below), whose sum is σ = 1525655693505600. Its totient is φ = 228848354025804.

The previous prime is 686545062077401. The next prime is 686545062077467. The reversal of 686545062077466 is 664770260545686.

686545062077466 is a `hidden beast` number, since 6 + 8 + 6 + 5 + 4 + 506 + 2 + 0 + 77 + 46 + 6 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 686545062077394 and 686545062077403.

It is not an unprimeable number, because it can be changed into a prime (686545062077467) 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, 6356898722886 + ... + 6356898722993.

It is an arithmetic number, because the mean of its divisors is an integer number (95353480844100).

Almost surely, 2^{686545062077466} is an apocalyptic number.

686545062077466 is an abundant number, since it is smaller than the sum of its proper divisors (839110631428134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

686545062077466 is a wasteful number, since it uses less digits than its factorization.

686545062077466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713797445890 (or 12713797445884 counting only the distinct ones).

The product of its (nonzero) digits is 2438553600, while the sum is 72.

The spelling of 686545062077466 in words is "six hundred eighty-six trillion, five hundred forty-five billion, sixty-two million, seventy-seven thousand, four hundred sixty-six".