698075249863680 has 1760 divisors, whose sum is σ = 2822748021080064. Its totient is φ = 164355773497344.

The previous prime is 698075249863679. The next prime is 698075249863729. The reversal of 698075249863680 is 86368942570896.

It is a happy number.

698075249863680 is a `hidden beast` number, since 6 + 9 + 8 + 0 + 7 + 5 + 2 + 498 + 63 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 698075249863680.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 30132299457 + ... + 30132322623.

Almost surely, 2^{698075249863680} is an apocalyptic number.

698075249863680 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 698075249863680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411374010540032).

698075249863680 is an abundant number, since it is smaller than the sum of its proper divisors (2124672771216384).

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

698075249863680 is an equidigital number, since it uses as much as digits as its factorization.

698075249863680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23255 (or 23213 counting only the distinct ones).

The product of its (nonzero) digits is 7524679680, while the sum is 81.

The spelling of 698075249863680 in words is "six hundred ninety-eight trillion, seventy-five billion, two hundred forty-nine million, eight hundred sixty-three thousand, six hundred eighty".