1010778327503 has 4 divisors (see below), whose sum is σ = 1155175231440. Its totient is φ = 866381423568.

The previous prime is 1010778327443. The next prime is 1010778327511. The reversal of 1010778327503 is 3057238770101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010778327503 - 2¹⁴ = 1010778311119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010778327103) 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 in 3 ways as a sum of consecutive naturals, for example, 72198451958 + ... + 72198451971.

It is an arithmetic number, because the mean of its divisors is an integer number (288793807860).

Almost surely, 2^{1010778327503} is an apocalyptic number.

1010778327503 is a deficient number, since it is larger than the sum of its proper divisors (144396903937).

1010778327503 is an equidigital number, since it uses as much as digits as its factorization.

1010778327503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144396903936.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 1010778327503 in words is "one trillion, ten billion, seven hundred seventy-eight million, three hundred twenty-seven thousand, five hundred three".