190201719457 has 2 divisors, whose sum is σ = 190201719458. Its totient is φ = 190201719456.

The previous prime is 190201719431. The next prime is 190201719541. The reversal of 190201719457 is 754917102091.

190201719457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166167108496 + 24034610961 = 407636^2 + 155031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190201719457 is a prime.

It is not a weakly prime, because it can be changed into another prime (190201779457) 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, 95100859728 + 95100859729.

It is an arithmetic number, because the mean of its divisors is an integer number (95100859729).

Almost surely, 2^190201719457 is an apocalyptic number.

It is an amenable number.

190201719457 is a deficient number, since it is larger than the sum of its proper divisors (1).

190201719457 is an equidigital number, since it uses as much as digits as its factorization.

190201719457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 190201719457 in words is "one hundred ninety billion, two hundred one million, seven hundred nineteen thousand, four hundred fifty-seven".