1058778722785 has 16 divisors (see below), whose sum is σ = 1485807751296. Its totient is φ = 709135515648.

The previous prime is 1058778722777. The next prime is 1058778722791. The reversal of 1058778722785 is 5872278778501.

It is not a de Polignac number, because 1058778722785 - 2³ = 1058778722777 is a prime.

It is a super-2 number, since 2×1058778722785² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1058778722785.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 351752224 + ... + 351755233.

It is an arithmetic number, because the mean of its divisors is an integer number (92862984456).

Almost surely, 2^{1058778722785} is an apocalyptic number.

It is an amenable number.

1058778722785 is a deficient number, since it is larger than the sum of its proper divisors (427029028511).

1058778722785 is an equidigital number, since it uses as much as digits as its factorization.

1058778722785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703507512.

The product of its (nonzero) digits is 122931200, while the sum is 67.

The spelling of 1058778722785 in words is "one trillion, fifty-eight billion, seven hundred seventy-eight million, seven hundred twenty-two thousand, seven hundred eighty-five".