190441917769 has 2 divisors, whose sum is σ = 190441917770. Its totient is φ = 190441917768.

The previous prime is 190441917737. The next prime is 190441917793. The reversal of 190441917769 is 967719144091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189708158025 + 733759744 = 435555^2 + 27088^2 .

It is a cyclic number.

It is not a de Polignac number, because 190441917769 - 2⁵ = 190441917737 is a prime.

It is a super-2 number, since 2×190441917769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (190441927769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95220958884 + 95220958885.

It is an arithmetic number, because the mean of its divisors is an integer number (95220958885).

Almost surely, 2^190441917769 is an apocalyptic number.

It is an amenable number.

190441917769 is a deficient number, since it is larger than the sum of its proper divisors (1).

190441917769 is an equidigital number, since it uses as much as digits as its factorization.

190441917769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The spelling of 190441917769 in words is "one hundred ninety billion, four hundred forty-one million, nine hundred seventeen thousand, seven hundred sixty-nine".