6986889870 has 16 divisors (see below), whose sum is σ = 16768535760. Its totient is φ = 1863170624.

The previous prime is 6986889869. The next prime is 6986889941. The reversal of 6986889870 is 789886896.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6986889795 and 6986889804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116448135 + ... + 116448194.

It is an arithmetic number, because the mean of its divisors is an integer number (1048033485).

Almost surely, 2^6986889870 is an apocalyptic number.

6986889870 is an abundant number, since it is smaller than the sum of its proper divisors (9781645890).

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

6986889870 is a wasteful number, since it uses less digits than its factorization.

6986889870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232896339.

The product of its (nonzero) digits is 83607552, while the sum is 69.

The square root of 6986889870 is about 83587.6179227522. The cubic root of 6986889870 is about 1911.7362089974.

The spelling of 6986889870 in words is "six billion, nine hundred eighty-six million, eight hundred eighty-nine thousand, eight hundred seventy".