20860002186 has 8 divisors (see below), whose sum is σ = 41720004384. Its totient is φ = 6953334060.

The previous prime is 20860002143. The next prime is 20860002197. The reversal of 20860002186 is 68120006802.

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

20860002186 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738333510 + ... + 1738333521.

It is an arithmetic number, because the mean of its divisors is an integer number (5215000548).

Almost surely, 2^20860002186 is an apocalyptic number.

20860002186 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20860002186 is a wasteful number, since it uses less digits than its factorization.

20860002186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476667036.

The product of its (nonzero) digits is 9216, while the sum is 33.

Adding to 20860002186 its reverse (68120006802), we get a palindrome (88980008988).

The spelling of 20860002186 in words is "twenty billion, eight hundred sixty million, two thousand, one hundred eighty-six".