6895286664 has 96 divisors (see below), whose sum is σ = 20143307520. Its totient is φ = 1961172864.

The previous prime is 6895286641. The next prime is 6895286689. The reversal of 6895286664 is 4666825986.

It is a junction number, because it is equal to n+sod(n) for n = 6895286598 and 6895286607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249102 + ... + 275394.

It is an arithmetic number, because the mean of its divisors is an integer number (209826120).

Almost surely, 2^6895286664 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 6895286664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10071653760).

6895286664 is an abundant number, since it is smaller than the sum of its proper divisors (13248020856).

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

6895286664 is a wasteful number, since it uses less digits than its factorization.

6895286664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26539 (or 26528 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The square root of 6895286664 is about 83037.8628337700. The cubic root of 6895286664 is about 1903.3446778785.

The spelling of 6895286664 in words is "six billion, eight hundred ninety-five million, two hundred eighty-six thousand, six hundred sixty-four".