16853838431 has 2 divisors, whose sum is σ = 16853838432. Its totient is φ = 16853838430.

The previous prime is 16853838361. The next prime is 16853838457. The reversal of 16853838431 is 13483835861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16853838431 - 2¹⁴ = 16853822047 is a prime.

It is a super-2 number, since 2×16853838431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16853838431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16853838481) 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 as a sum of consecutive naturals, namely, 8426919215 + 8426919216.

It is an arithmetic number, because the mean of its divisors is an integer number (8426919216).

Almost surely, 2^16853838431 is an apocalyptic number.

16853838431 is a deficient number, since it is larger than the sum of its proper divisors (1).

16853838431 is an equidigital number, since it uses as much as digits as its factorization.

16853838431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 50.

The spelling of 16853838431 in words is "sixteen billion, eight hundred fifty-three million, eight hundred thirty-eight thousand, four hundred thirty-one".