684056222290 has 32 divisors (see below), whose sum is σ = 1414568945664. Its totient is φ = 233305632960.

The previous prime is 684056222261. The next prime is 684056222329. The reversal of 684056222290 is 92222650486.

It is a self number, because there is not a number n which added to its sum of digits gives 684056222290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25568389 + ... + 25595128.

It is an arithmetic number, because the mean of its divisors is an integer number (44205279552).

Almost surely, 2^684056222290 is an apocalyptic number.

684056222290 is an abundant number, since it is smaller than the sum of its proper divisors (730512723374).

684056222290 is a wasteful number, since it uses less digits than its factorization.

684056222290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51163722.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 684056222290 in words is "six hundred eighty-four billion, fifty-six million, two hundred twenty-two thousand, two hundred ninety".