684074012234 has 16 divisors (see below), whose sum is σ = 1070808363648. Its totient is φ = 327140219472.

The previous prime is 684074012231. The next prime is 684074012249. The reversal of 684074012234 is 432210470486.

It is a junction number, because it is equal to n+sod(n) for n = 684074012191 and 684074012200.

It is not an unprimeable number, because it can be changed into a prime (684074012231) 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, 18539 + ... + 1169825.

It is an arithmetic number, because the mean of its divisors is an integer number (66925522728).

Almost surely, 2^684074012234 is an apocalyptic number.

684074012234 is a deficient number, since it is larger than the sum of its proper divisors (386734351414).

684074012234 is a wasteful number, since it uses less digits than its factorization.

684074012234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164229.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 684074012234 in words is "six hundred eighty-four billion, seventy-four million, twelve thousand, two hundred thirty-four".