6867785880 has 320 divisors, whose sum is σ = 24099482880. Its totient is φ = 1752192000.

The previous prime is 6867785861. The next prime is 6867785933. The reversal of 6867785880 is 885877686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10144102 + ... + 10144778.

It is an arithmetic number, because the mean of its divisors is an integer number (75310884).

Almost surely, 2^6867785880 is an apocalyptic number.

6867785880 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 6867785880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12049741440).

6867785880 is an abundant number, since it is smaller than the sum of its proper divisors (17231697000).

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

6867785880 is a wasteful number, since it uses less digits than its factorization.

6867785880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The square root of 6867785880 is about 82872.1055603150. The cubic root of 6867785880 is about 1900.8109077848.

The spelling of 6867785880 in words is "six billion, eight hundred sixty-seven million, seven hundred eighty-five thousand, eight hundred eighty".