1794794861777 has 2 divisors, whose sum is σ = 1794794861778. Its totient is φ = 1794794861776.

The previous prime is 1794794861771. The next prime is 1794794861791. The reversal of 1794794861777 is 7771684974971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1793887888321 + 906973456 = 1339361^2 + 30116^2 .

It is a cyclic number.

It is not a de Polignac number, because 1794794861777 - 2⁴⁰ = 695283234001 is a prime.

It is a super-2 number, since 2×1794794861777² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1794794861698 and 1794794861707.

It is not a weakly prime, because it can be changed into another prime (1794794861771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897397430888 + 897397430889.

It is an arithmetic number, because the mean of its divisors is an integer number (897397430889).

Almost surely, 2^{1794794861777} is an apocalyptic number.

It is an amenable number.

1794794861777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1794794861777 is an equidigital number, since it uses as much as digits as its factorization.

1794794861777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1045529856, while the sum is 77.

The spelling of 1794794861777 in words is "one trillion, seven hundred ninety-four billion, seven hundred ninety-four million, eight hundred sixty-one thousand, seven hundred seventy-seven".