190411450109 has 2 divisors, whose sum is σ = 190411450110. Its totient is φ = 190411450108.

The previous prime is 190411450093. The next prime is 190411450157. The reversal of 190411450109 is 901054114091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112892640025 + 77518810084 = 335995^2 + 278422^2 .

It is a cyclic number.

It is not a de Polignac number, because 190411450109 - 2⁴ = 190411450093 is a prime.

It is a super-2 number, since 2×190411450109² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190411450199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95205725054 + 95205725055.

It is an arithmetic number, because the mean of its divisors is an integer number (95205725055).

Almost surely, 2^190411450109 is an apocalyptic number.

It is an amenable number.

190411450109 is a deficient number, since it is larger than the sum of its proper divisors (1).

190411450109 is an equidigital number, since it uses as much as digits as its factorization.

190411450109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 35.

The spelling of 190411450109 in words is "one hundred ninety billion, four hundred eleven million, four hundred fifty thousand, one hundred nine".