684739937486 has 16 divisors (see below), whose sum is σ = 1141624734768. Its totient is φ = 305372870400.

The previous prime is 684739937473. The next prime is 684739937491.

684739937486 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293626595 + ... + 293628926.

It is an arithmetic number, because the mean of its divisors is an integer number (71351545923).

Almost surely, 2^684739937486 is an apocalyptic number.

684739937486 is a deficient number, since it is larger than the sum of its proper divisors (456884797282).

684739937486 is a wasteful number, since it uses less digits than its factorization.

684739937486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587255587.

The product of its digits is 1316818944, while the sum is 74.

The spelling of 684739937486 in words is "six hundred eighty-four billion, seven hundred thirty-nine million, nine hundred thirty-seven thousand, four hundred eighty-six".