698453839980 has 864 divisors, whose sum is σ = 2586770665920. Its totient is φ = 155497605120.

The previous prime is 698453839931. The next prime is 698453839997. The reversal of 698453839980 is 89938354896.

698453839980 is a `hidden beast` number, since 6 + 9 + 8 + 4 + 538 + 3 + 9 + 9 + 80 = 666.

698453839980 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 698453839899 and 698453839908.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1340602120 + ... + 1340602640.

It is an arithmetic number, because the mean of its divisors is an integer number (2993947530).

Almost surely, 2^698453839980 is an apocalyptic number.

698453839980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698453839980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293385332960).

698453839980 is an abundant number, since it is smaller than the sum of its proper divisors (1888316825940).

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

698453839980 is a wasteful number, since it uses less digits than its factorization.

698453839980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 403107840, while the sum is 72.

The spelling of 698453839980 in words is "six hundred ninety-eight billion, four hundred fifty-three million, eight hundred thirty-nine thousand, nine hundred eighty".