698200621056 has 261 divisors, whose sum is σ = 2142651805801. Its totient is φ = 219043332096.

The previous prime is 698200621021. The next prime is 698200621103. The reversal of 698200621056 is 650126002896.

The square root of 698200621056 is 835584.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 543581798400 + 154618822656 = 737280^2 + 393216^2 .

It is a super-2 number, since 2×698200621056² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41070624760 + ... + 41070624776.

Almost surely, 2^698200621056 is an apocalyptic number.

698200621056 is the 835584-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698200621056

698200621056 is an abundant number, since it is smaller than the sum of its proper divisors (1444451184745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

698200621056 is an frugal number, since it uses more digits than its factorization.

698200621056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 22 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 698200621056 in words is "six hundred ninety-eight billion, two hundred million, six hundred twenty-one thousand, fifty-six".