1819953494119 has 2 divisors, whose sum is σ = 1819953494120. Its totient is φ = 1819953494118.

The previous prime is 1819953494087. The next prime is 1819953494153. The reversal of 1819953494119 is 9114943599181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1819953494119 - 2⁵ = 1819953494087 is a prime.

It is a super-2 number, since 2×1819953494119² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1819953404119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909976747059 + 909976747060.

It is an arithmetic number, because the mean of its divisors is an integer number (909976747060).

Almost surely, 2^{1819953494119} is an apocalyptic number.

1819953494119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1819953494119 is an equidigital number, since it uses as much as digits as its factorization.

1819953494119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 64.

The spelling of 1819953494119 in words is "one trillion, eight hundred nineteen billion, nine hundred fifty-three million, four hundred ninety-four thousand, one hundred nineteen".