20183853668870 has 32 divisors (see below), whose sum is σ = 36464189979168. Its totient is φ = 8043943602688.

The previous prime is 20183853668863. The next prime is 20183853668879. The reversal of 20183853668870 is 7886635838102.

It is a junction number, because it is equal to n+sod(n) for n = 20183853668797 and 20183853668806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20183853668879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10692062 + ... + 12437358.

It is an arithmetic number, because the mean of its divisors is an integer number (1139505936849).

Almost surely, 2^{20183853668870} is an apocalyptic number.

20183853668870 is a deficient number, since it is larger than the sum of its proper divisors (16280336310298).

20183853668870 is a wasteful number, since it uses less digits than its factorization.

20183853668870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749544.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 20183853668870 in words is "twenty trillion, one hundred eighty-three billion, eight hundred fifty-three million, six hundred sixty-eight thousand, eight hundred seventy".