5037878787649 has 2 divisors, whose sum is σ = 5037878787650. Its totient is φ = 5037878787648.

The previous prime is 5037878787631. The next prime is 5037878787671. The reversal of 5037878787649 is 9467878787305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3605232575025 + 1432646212624 = 1898745^2 + 1196932^2 .

It is a cyclic number.

It is not a de Polignac number, because 5037878787649 - 2¹¹ = 5037878785601 is a prime.

It is not a weakly prime, because it can be changed into another prime (5037878787049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518939393824 + 2518939393825.

It is an arithmetic number, because the mean of its divisors is an integer number (2518939393825).

Almost surely, 2^{5037878787649} is an apocalyptic number.

It is an amenable number.

5037878787649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5037878787649 is an equidigital number, since it uses as much as digits as its factorization.

5037878787649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3982970880, while the sum is 79.

The spelling of 5037878787649 in words is "five trillion, thirty-seven billion, eight hundred seventy-eight million, seven hundred eighty-seven thousand, six hundred forty-nine".