189016416851 has 2 divisors, whose sum is σ = 189016416852. Its totient is φ = 189016416850.

The previous prime is 189016416793. The next prime is 189016416857. The reversal of 189016416851 is 158614610981.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (158614610981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189016416851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189016416851.

It is not a weakly prime, because it can be changed into another prime (189016416857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94508208425 + 94508208426.

It is an arithmetic number, because the mean of its divisors is an integer number (94508208426).

Almost surely, 2^189016416851 is an apocalyptic number.

189016416851 is a deficient number, since it is larger than the sum of its proper divisors (1).

189016416851 is an equidigital number, since it uses as much as digits as its factorization.

189016416851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 50.

The spelling of 189016416851 in words is "one hundred eighty-nine billion, sixteen million, four hundred sixteen thousand, eight hundred fifty-one".