6978967884 has 144 divisors (see below), whose sum is σ = 21210456960. Its totient is φ = 1978572960.

The previous prime is 6978967883. The next prime is 6978967927. The reversal of 6978967884 is 4887698796.

It is not an unprimeable number, because it can be changed into a prime (6978967883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 688219 + ... + 698285.

It is an arithmetic number, because the mean of its divisors is an integer number (147294840).

Almost surely, 2^6978967884 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 6978967884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10605228480).

6978967884 is an abundant number, since it is smaller than the sum of its proper divisors (14231489076).

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

6978967884 is a wasteful number, since it uses less digits than its factorization.

6978967884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225 (or 10210 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The square root of 6978967884 is about 83540.2171651475. The cubic root of 6978967884 is about 1911.0134040842.

The spelling of 6978967884 in words is "six billion, nine hundred seventy-eight million, nine hundred sixty-seven thousand, eight hundred eighty-four".