698689947648 has 1152 divisors, whose sum is σ = 2489600655360. Its totient is φ = 170311680000.

The previous prime is 698689947563. The next prime is 698689947661. The reversal of 698689947648 is 846749986896.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9840703453 + ... + 9840703523.

It is an arithmetic number, because the mean of its divisors is an integer number (2161111680).

Almost surely, 2^698689947648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698689947648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244800327680).

698689947648 is an abundant number, since it is smaller than the sum of its proper divisors (1790910707712).

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

698689947648 is a wasteful number, since it uses less digits than its factorization.

698689947648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 186 counting only the distinct ones).

The product of its digits is 9029615616, while the sum is 84.

The spelling of 698689947648 in words is "six hundred ninety-eight billion, six hundred eighty-nine million, nine hundred forty-seven thousand, six hundred forty-eight".