2765564913757 has 2 divisors, whose sum is σ = 2765564913758. Its totient is φ = 2765564913756.

The previous prime is 2765564913739. The next prime is 2765564913851. The reversal of 2765564913757 is 7573194655672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1748924255961 + 1016640657796 = 1322469^2 + 1008286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2765564913757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2765564913692 and 2765564913701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2765564913737) 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, 1382782456878 + 1382782456879.

It is an arithmetic number, because the mean of its divisors is an integer number (1382782456879).

Almost surely, 2^{2765564913757} is an apocalyptic number.

It is an amenable number.

2765564913757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765564913757 is an equidigital number, since it uses as much as digits as its factorization.

2765564913757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396000, while the sum is 67.

The spelling of 2765564913757 in words is "two trillion, seven hundred sixty-five billion, five hundred sixty-four million, nine hundred thirteen thousand, seven hundred fifty-seven".