684887282788486 has 16 divisors (see below), whose sum is σ = 1028682724714848. Its totient is φ = 341993060841600.

The previous prime is 684887282788483. The next prime is 684887282788523.

684887282788486 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 684887282788394 and 684887282788403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684887282788483) 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, 65244991 + ... + 75011221.

It is an arithmetic number, because the mean of its divisors is an integer number (64292670294678).

Almost surely, 2^{684887282788486} is an apocalyptic number.

684887282788486 is a deficient number, since it is larger than the sum of its proper divisors (343795441926362).

684887282788486 is a wasteful number, since it uses less digits than its factorization.

684887282788486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812367.

The product of its digits is 236760072192, while the sum is 94.

The spelling of 684887282788486 in words is "six hundred eighty-four trillion, eight hundred eighty-seven billion, two hundred eighty-two million, seven hundred eighty-eight thousand, four hundred eighty-six".