6870686890 has 8 divisors (see below), whose sum is σ = 12367236420. Its totient is φ = 2748274752.

The previous prime is 6870686857. The next prime is 6870686897. The reversal of 6870686890 is 986860786.

It can be written as a sum of positive squares in 2 ways, for example, as 6836147761 + 34539129 = 82681^2 + 5877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6870686897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343534335 + ... + 343534354.

Almost surely, 2^6870686890 is an apocalyptic number.

6870686890 is a deficient number, since it is larger than the sum of its proper divisors (5496549530).

6870686890 is a wasteful number, since it uses less digits than its factorization.

6870686890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687068696.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The square root of 6870686890 is about 82889.6066464306. The cubic root of 6870686890 is about 1901.0785095663.

The spelling of 6870686890 in words is "six billion, eight hundred seventy million, six hundred eighty-six thousand, eight hundred ninety".