20862306718 has 24 divisors (see below), whose sum is σ = 34404403824. Its totient is φ = 9480810240.

The previous prime is 20862306713. The next prime is 20862306733. The reversal of 20862306718 is 81760326802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20862306713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1994430 + ... + 2004862.

It is an arithmetic number, because the mean of its divisors is an integer number (1433516826).

Almost surely, 2^20862306718 is an apocalyptic number.

20862306718 is a deficient number, since it is larger than the sum of its proper divisors (13542097106).

20862306718 is a wasteful number, since it uses less digits than its factorization.

20862306718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18720 (or 18709 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 20862306718 in words is "twenty billion, eight hundred sixty-two million, three hundred six thousand, seven hundred eighteen".