6986677872 has 80 divisors (see below), whose sum is σ = 19183573760. Its totient is φ = 2184869376.

The previous prime is 6986677849. The next prime is 6986677877. The reversal of 6986677872 is 2787766896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986677877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56748 + ... + 131124.

It is an arithmetic number, because the mean of its divisors is an integer number (239794672).

Almost surely, 2^6986677872 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 6986677872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9591786880).

6986677872 is an abundant number, since it is smaller than the sum of its proper divisors (12196895888).

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

6986677872 is a wasteful number, since it uses less digits than its factorization.

6986677872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74510 (or 74504 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 66.

The square root of 6986677872 is about 83586.3497946884. The cubic root of 6986677872 is about 1911.7168733388.

The spelling of 6986677872 in words is "six billion, nine hundred eighty-six million, six hundred seventy-seven thousand, eight hundred seventy-two".