2768508780997 has 2 divisors, whose sum is σ = 2768508780998. Its totient is φ = 2768508780996.

The previous prime is 2768508780967. The next prime is 2768508781039. The reversal of 2768508780997 is 7990878058672.

It is a happy number.

2768508780997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2397090448516 + 371418332481 = 1548254^2 + 609441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2768508780997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2768508780967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384254390498 + 1384254390499.

It is an arithmetic number, because the mean of its divisors is an integer number (1384254390499).

Almost surely, 2^{2768508780997} is an apocalyptic number.

It is an amenable number.

2768508780997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768508780997 is an equidigital number, since it uses as much as digits as its factorization.

2768508780997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 853493760, while the sum is 76.

The spelling of 2768508780997 in words is "two trillion, seven hundred sixty-eight billion, five hundred eight million, seven hundred eighty thousand, nine hundred ninety-seven".