1078864898077 has 2 divisors, whose sum is σ = 1078864898078. Its totient is φ = 1078864898076.

The previous prime is 1078864897991. The next prime is 1078864898107. The reversal of 1078864898077 is 7708984688701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037442065401 + 41422832676 = 1018549^2 + 203526^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078864898077 - 2¹⁹ = 1078864373789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078864898977) 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, 539432449038 + 539432449039.

It is an arithmetic number, because the mean of its divisors is an integer number (539432449039).

Almost surely, 2^{1078864898077} is an apocalyptic number.

It is an amenable number.

1078864898077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078864898077 is an equidigital number, since it uses as much as digits as its factorization.

1078864898077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 303464448, while the sum is 73.

The spelling of 1078864898077 in words is "one trillion, seventy-eight billion, eight hundred sixty-four million, eight hundred ninety-eight thousand, seventy-seven".