684013504820734 has 8 divisors (see below), whose sum is σ = 1119294826070328. Its totient is φ = 310915229463960.

The previous prime is 684013504820707. The next prime is 684013504820743. The reversal of 684013504820734 is 437028405310486.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15545761473177 + ... + 15545761473220.

It is an arithmetic number, because the mean of its divisors is an integer number (139911853258791).

Almost surely, 2^{684013504820734} is an apocalyptic number.

684013504820734 is a deficient number, since it is larger than the sum of its proper divisors (435281321249594).

684013504820734 is a wasteful number, since it uses less digits than its factorization.

684013504820734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31091522946410.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 684013504820734 in words is "six hundred eighty-four trillion, thirteen billion, five hundred four million, eight hundred twenty thousand, seven hundred thirty-four".