685873388160 has 256 divisors, whose sum is σ = 2432952144000. Its totient is φ = 182612164608.

The previous prime is 685873388153. The next prime is 685873388171. The reversal of 685873388160 is 61883378586.

685873388160 is a `hidden beast` number, since 6 + 8 + 587 + 3 + 38 + 8 + 16 + 0 = 666.

685873388160 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11080176 + ... + 11141904.

Almost surely, 2^685873388160 is an apocalyptic number.

685873388160 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 685873388160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216476072000).

685873388160 is an abundant number, since it is smaller than the sum of its proper divisors (1747078755840).

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

685873388160 is a wasteful number, since it uses less digits than its factorization.

685873388160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62400 (or 62382 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 685873388160 in words is "six hundred eighty-five billion, eight hundred seventy-three million, three hundred eighty-eight thousand, one hundred sixty".