2766140403709 has 2 divisors, whose sum is σ = 2766140403710. Its totient is φ = 2766140403708.

The previous prime is 2766140403641. The next prime is 2766140403713. The reversal of 2766140403709 is 9073040416672.

2766140403709 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2756254078809 + 9886324900 = 1660197^2 + 99430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2766140403709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2766140403739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383070201854 + 1383070201855.

It is an arithmetic number, because the mean of its divisors is an integer number (1383070201855).

Almost surely, 2^{2766140403709} is an apocalyptic number.

It is an amenable number.

2766140403709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2766140403709 is an equidigital number, since it uses as much as digits as its factorization.

2766140403709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 2766140403709 in words is "two trillion, seven hundred sixty-six billion, one hundred forty million, four hundred three thousand, seven hundred nine".