6698785536 has 360 divisors, whose sum is σ = 21867398784. Its totient is φ = 2030469120.

The previous prime is 6698785529. The next prime is 6698785543. The reversal of 6698785536 is 6355878966.

6698785536 is a `hidden beast` number, since 6 + 6 + 9 + 8 + 78 + 553 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (6698785529) and next prime (6698785543).

It is a super-3 number, since 3×6698785536³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10927566 + ... + 10928178.

Almost surely, 2^6698785536 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 6698785536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10933699392).

6698785536 is an abundant number, since it is smaller than the sum of its proper divisors (15168613248).

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

6698785536 is a wasteful number, since it uses less digits than its factorization.

6698785536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 666 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The square root of 6698785536 is about 81846.1088629142. The cubic root of 6698785536 is about 1885.0897180712.

The spelling of 6698785536 in words is "six billion, six hundred ninety-eight million, seven hundred eighty-five thousand, five hundred thirty-six".