189210919699 has 2 divisors, whose sum is σ = 189210919700. Its totient is φ = 189210919698.

The previous prime is 189210919691. The next prime is 189210919727. The reversal of 189210919699 is 996919012981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189210919699 - 2³ = 189210919691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189210919699.

It is not a weakly prime, because it can be changed into another prime (189210919691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94605459849 + 94605459850.

It is an arithmetic number, because the mean of its divisors is an integer number (94605459850).

Almost surely, 2^189210919699 is an apocalyptic number.

189210919699 is a deficient number, since it is larger than the sum of its proper divisors (1).

189210919699 is an equidigital number, since it uses as much as digits as its factorization.

189210919699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5668704, while the sum is 64.

The spelling of 189210919699 in words is "one hundred eighty-nine billion, two hundred ten million, nine hundred nineteen thousand, six hundred ninety-nine".