6986889868 has 48 divisors (see below), whose sum is σ = 14487266304. Its totient is φ = 2886111360.

The previous prime is 6986889853. The next prime is 6986889869. The reversal of 6986889868 is 8689886896.

It is a super-4 number, since 4×6986889868⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6986889794 and 6986889803.

It is not an unprimeable number, because it can be changed into a prime (6986889869) 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, 58621 + ... + 131947.

It is an arithmetic number, because the mean of its divisors is an integer number (301818048).

Almost surely, 2^6986889868 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 6986889868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7243633152).

6986889868 is an abundant number, since it is smaller than the sum of its proper divisors (7500376436).

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

6986889868 is a wasteful number, since it uses less digits than its factorization.

6986889868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73462 (or 73460 counting only the distinct ones).

The product of its digits is 573308928, while the sum is 76.

The square root of 6986889868 is about 83587.6179107887. The cubic root of 6986889868 is about 1911.7362088150.

The spelling of 6986889868 in words is "six billion, nine hundred eighty-six million, eight hundred eighty-nine thousand, eight hundred sixty-eight".