684326634430 has 32 divisors (see below), whose sum is σ = 1248683433984. Its totient is φ = 269986971936.

The previous prime is 684326634353. The next prime is 684326634449. The reversal of 684326634430 is 34436623486.

It is a super-2 number, since 2×684326634430² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 175342 + ... + 1182961.

It is an arithmetic number, because the mean of its divisors is an integer number (39021357312).

Almost surely, 2^684326634430 is an apocalyptic number.

684326634430 is a deficient number, since it is larger than the sum of its proper divisors (564356799554).

684326634430 is a wasteful number, since it uses less digits than its factorization.

684326634430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359000.

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 684326634430 in words is "six hundred eighty-four billion, three hundred twenty-six million, six hundred thirty-four thousand, four hundred thirty".