1078138445029 has 2 divisors, whose sum is σ = 1078138445030. Its totient is φ = 1078138445028.

The previous prime is 1078138444909. The next prime is 1078138445039. The reversal of 1078138445029 is 9205448318701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 809946000900 + 268192444129 = 899970^2 + 517873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078138445029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078138445039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539069222514 + 539069222515.

It is an arithmetic number, because the mean of its divisors is an integer number (539069222515).

Almost surely, 2^{1078138445029} is an apocalyptic number.

It is an amenable number.

1078138445029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078138445029 is an equidigital number, since it uses as much as digits as its factorization.

1078138445029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 1078138445029 in words is "one trillion, seventy-eight billion, one hundred thirty-eight million, four hundred forty-five thousand, twenty-nine".