6868762885 has 8 divisors (see below), whose sum is σ = 8285223960. Its totient is φ = 5466537984.

The previous prime is 6868762867. The next prime is 6868762889. The reversal of 6868762885 is 5882678686.

It is a Cunningham number, because it is equal to 82878²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 6868762884 = 1^2 + 82878^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6868762885 - 2²⁷ = 6734545157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868762889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3557980 + ... + 3559909.

It is an arithmetic number, because the mean of its divisors is an integer number (1035652995).

Almost surely, 2^6868762885 is an apocalyptic number.

It is an amenable number.

6868762885 is a deficient number, since it is larger than the sum of its proper divisors (1416461075).

6868762885 is a wasteful number, since it uses less digits than its factorization.

6868762885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118087.

The product of its digits is 61931520, while the sum is 64.

The square root of 6868762885 is about 82878.0000060330. Note that the first 5 decimals coincide. The cubic root of 6868762885 is about 1900.9010393904.

The spelling of 6868762885 in words is "six billion, eight hundred sixty-eight million, seven hundred sixty-two thousand, eight hundred eighty-five".