20784465740741 has 2 divisors, whose sum is σ = 20784465740742. Its totient is φ = 20784465740740.

The previous prime is 20784465740629. The next prime is 20784465740777. The reversal of 20784465740741 is 14704756448702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12782441164516 + 8002024576225 = 3575254^2 + 2828785^2 .

It is a cyclic number.

It is not a de Polignac number, because 20784465740741 - 2¹⁰ = 20784465739717 is a prime.

It is a super-2 number, since 2×20784465740741² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20784465740041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10392232870370 + 10392232870371.

It is an arithmetic number, because the mean of its divisors is an integer number (10392232870371).

Almost surely, 2^{20784465740741} is an apocalyptic number.

It is an amenable number.

20784465740741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20784465740741 is an equidigital number, since it uses as much as digits as its factorization.

20784465740741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42147840, while the sum is 59.

It can be divided in two parts, 2078446 and 5740741, that added together give a palindrome (7819187).

The spelling of 20784465740741 in words is "twenty trillion, seven hundred eighty-four billion, four hundred sixty-five million, seven hundred forty thousand, seven hundred forty-one".