1938092824081 has 2 divisors, whose sum is σ = 1938092824082. Its totient is φ = 1938092824080.

The previous prime is 1938092824037. The next prime is 1938092824093. The reversal of 1938092824081 is 1804282908391.

It is the 568345-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1882672131025 + 55420693056 = 1372105^2 + 235416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1938092824081 - 2²³ = 1938084435473 is a prime.

It is a super-2 number, since 2×1938092824081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1938092827081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969046412040 + 969046412041.

It is an arithmetic number, because the mean of its divisors is an integer number (969046412041).

Almost surely, 2^{1938092824081} is an apocalyptic number.

1938092824081 is the 803761-st hex number.

It is an amenable number.

1938092824081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938092824081 is an equidigital number, since it uses as much as digits as its factorization.

1938092824081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 1938092824081 in words is "one trillion, nine hundred thirty-eight billion, ninety-two million, eight hundred twenty-four thousand, eighty-one".