190811480729 has 2 divisors, whose sum is σ = 190811480730. Its totient is φ = 190811480728.

The previous prime is 190811480723. The next prime is 190811480731. The reversal of 190811480729 is 927084118091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189312010000 + 1499470729 = 435100^2 + 38723^2 .

It is an emirp because it is prime and its reverse (927084118091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190811480729 - 2²⁴ = 190794703513 is a prime.

Together with 190811480731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190811480723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95405740364 + 95405740365.

It is an arithmetic number, because the mean of its divisors is an integer number (95405740365).

Almost surely, 2^190811480729 is an apocalyptic number.

It is an amenable number.

190811480729 is a deficient number, since it is larger than the sum of its proper divisors (1).

190811480729 is an equidigital number, since it uses as much as digits as its factorization.

190811480729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 190811480729 in words is "one hundred ninety billion, eight hundred eleven million, four hundred eighty thousand, seven hundred twenty-nine".