6868856052 has 180 divisors, whose sum is σ = 19278550060. Its totient is φ = 2131992576.

The previous prime is 6868856047. The next prime is 6868856101. The reversal of 6868856052 is 2506588686.

It can be written as a sum of positive squares in 6 ways, for example, as 633226896 + 6235629156 = 25164^2 + 78966^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6868856052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 10205988 + ... + 10206660.

Almost surely, 2^6868856052 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 6868856052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9639275030).

6868856052 is an abundant number, since it is smaller than the sum of its proper divisors (12409694008).

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

6868856052 is a wasteful number, since it uses less digits than its factorization.

6868856052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The square root of 6868856052 is about 82878.5620772948. The cubic root of 6868856052 is about 1900.9096338758.

The spelling of 6868856052 in words is "six billion, eight hundred sixty-eight million, eight hundred fifty-six thousand, fifty-two".