2765381796997 has 2 divisors, whose sum is σ = 2765381796998. Its totient is φ = 2765381796996.

The previous prime is 2765381796923. The next prime is 2765381797063. The reversal of 2765381796997 is 7996971835672.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1744475657796 + 1020906139201 = 1320786^2 + 1010399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2765381796997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2765381799997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382690898498 + 1382690898499.

It is an arithmetic number, because the mean of its divisors is an integer number (1382690898499).

Almost surely, 2^{2765381796997} is an apocalyptic number.

It is an amenable number.

2765381796997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765381796997 is an equidigital number, since it uses as much as digits as its factorization.

2765381796997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160406080, while the sum is 79.

The spelling of 2765381796997 in words is "two trillion, seven hundred sixty-five billion, three hundred eighty-one million, seven hundred ninety-six thousand, nine hundred ninety-seven".