1794381881 has 2 divisors, whose sum is σ = 1794381882. Its totient is φ = 1794381880.

The previous prime is 1794381811. The next prime is 1794381893. The reversal of 1794381881 is 1881834971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184736400 + 609645481 = 34420^2 + 24691^2 .

It is an emirp because it is prime and its reverse (1881834971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1794381881 - 2²⁶ = 1727273017 is a prime.

It is a super-2 number, since 2×1794381881² = 6439612669722196322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1794381811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897190940 + 897190941.

It is an arithmetic number, because the mean of its divisors is an integer number (897190941).

Almost surely, 2^1794381881 is an apocalyptic number.

It is an amenable number.

1794381881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1794381881 is an equidigital number, since it uses as much as digits as its factorization.

1794381881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 50.

The square root of 1794381881 is about 42360.1449596198. The cubic root of 1794381881 is about 1215.1735047765.

The spelling of 1794381881 in words is "one billion, seven hundred ninety-four million, three hundred eighty-one thousand, eight hundred eighty-one".