203143648689 has 24 divisors (see below), whose sum is σ = 302015292800. Its totient is φ = 131522732640.

The previous prime is 203143648661. The next prime is 203143648693. The reversal of 203143648689 is 986846341302.

203143648689 is a `hidden beast` number, since 20 + 31 + 4 + 36 + 486 + 89 = 666.

203143648689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203143648689 - 2¹² = 203143644593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203143648889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2298559 + ... + 2385300.

Almost surely, 2^203143648689 is an apocalyptic number.

It is an amenable number.

203143648689 is a deficient number, since it is larger than the sum of its proper divisors (98871644111).

203143648689 is a wasteful number, since it uses less digits than its factorization.

203143648689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684005 (or 4684002 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 203143648689 in words is "two hundred three billion, one hundred forty-three million, six hundred forty-eight thousand, six hundred eighty-nine".