190794746449 has 2 divisors, whose sum is σ = 190794746450. Its totient is φ = 190794746448.

The previous prime is 190794746431. The next prime is 190794746489. The reversal of 190794746449 is 944647497091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172530575424 + 18264171025 = 415368^2 + 135145^2 .

It is a cyclic number.

It is not a de Polignac number, because 190794746449 - 2⁹ = 190794745937 is a prime.

It is not a weakly prime, because it can be changed into another prime (190794746489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95397373224 + 95397373225.

It is an arithmetic number, because the mean of its divisors is an integer number (95397373225).

Almost surely, 2^190794746449 is an apocalyptic number.

It is an amenable number.

190794746449 is a deficient number, since it is larger than the sum of its proper divisors (1).

190794746449 is an equidigital number, since it uses as much as digits as its factorization.

190794746449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 190794746449 in words is "one hundred ninety billion, seven hundred ninety-four million, seven hundred forty-six thousand, four hundred forty-nine".