6866881152 has 64 divisors (see below), whose sum is σ = 18445190400. Its totient is φ = 2263230464.

The previous prime is 6866881123. The next prime is 6866881157. The reversal of 6866881152 is 2511886686.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 6866881095 and 6866881104.

It is not an unprimeable number, because it can be changed into a prime (6866881157) 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, 66288 + ... + 134639.

It is an arithmetic number, because the mean of its divisors is an integer number (288206100).

Almost surely, 2^6866881152 is an apocalyptic number.

It is an amenable number.

6866881152 is an abundant number, since it is smaller than the sum of its proper divisors (11578309248).

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

6866881152 is a wasteful number, since it uses less digits than its factorization.

6866881152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201033 (or 201021 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The square root of 6866881152 is about 82866.6468007485. The cubic root of 6866881152 is about 1900.7274363234.

The spelling of 6866881152 in words is "six billion, eight hundred sixty-six million, eight hundred eighty-one thousand, one hundred fifty-two".