6989867850 has 48 divisors (see below), whose sum is σ = 19811285568. Its totient is φ = 1597683840.

The previous prime is 6989867791. The next prime is 6989867867. The reversal of 6989867850 is 587689896.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3327459 + ... + 3329558.

It is an arithmetic number, because the mean of its divisors is an integer number (412735116).

Almost surely, 2^6989867850 is an apocalyptic number.

6989867850 is an abundant number, since it is smaller than the sum of its proper divisors (12821417718).

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

6989867850 is a wasteful number, since it uses less digits than its factorization.

6989867850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657039 (or 6657034 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 66.

The square root of 6989867850 is about 83605.4295485646. The cubic root of 6989867850 is about 1912.0077796889.

The spelling of 6989867850 in words is "six billion, nine hundred eighty-nine million, eight hundred sixty-seven thousand, eight hundred fifty".