2878752776729 has 2 divisors, whose sum is σ = 2878752776730. Its totient is φ = 2878752776728.

The previous prime is 2878752776689. The next prime is 2878752776743. The reversal of 2878752776729 is 9276772578782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2878359944329 + 392832400 = 1696573^2 + 19820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878752776729 - 2³⁶ = 2810033299993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2878752776729.

It is not a weakly prime, because it can be changed into another prime (2878752776759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439376388364 + 1439376388365.

It is an arithmetic number, because the mean of its divisors is an integer number (1439376388365).

Almost surely, 2^{2878752776729} is an apocalyptic number.

It is an amenable number.

2878752776729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878752776729 is an equidigital number, since it uses as much as digits as its factorization.

2878752776729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2323399680, while the sum is 77.

The spelling of 2878752776729 in words is "two trillion, eight hundred seventy-eight billion, seven hundred fifty-two million, seven hundred seventy-six thousand, seven hundred twenty-nine".