18835700216851 has 32 divisors (see below), whose sum is σ = 21825158648832. Its totient is φ = 15922468423680.

The previous prime is 18835700216833. The next prime is 18835700216857. The reversal of 18835700216851 is 15861200753881.

It is not a de Polignac number, because 18835700216851 - 2¹¹ = 18835700214803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18835700216792 and 18835700216801.

It is not an unprimeable number, because it can be changed into a prime (18835700216857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1031688315 + ... + 1031706571.

It is an arithmetic number, because the mean of its divisors is an integer number (682036207776).

Almost surely, 2^{18835700216851} is an apocalyptic number.

18835700216851 is a deficient number, since it is larger than the sum of its proper divisors (2989458431981).

18835700216851 is a wasteful number, since it uses less digits than its factorization.

18835700216851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25299.

The product of its (nonzero) digits is 3225600, while the sum is 55.

The spelling of 18835700216851 in words is "eighteen trillion, eight hundred thirty-five billion, seven hundred million, two hundred sixteen thousand, eight hundred fifty-one".