2758973128705 has 4 divisors (see below), whose sum is σ = 3310767754452. Its totient is φ = 2207178502960.

The previous prime is 2758973128693. The next prime is 2758973128763. The reversal of 2758973128705 is 5078213798572.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1975910960241 + 783062168464 = 1405671^2 + 884908^2 .

It is not a de Polignac number, because 2758973128705 - 2²⁹ = 2758436257793 is a prime.

It is a super-2 number, since 2×2758973128705² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275897312866 + ... + 275897312875.

It is an arithmetic number, because the mean of its divisors is an integer number (827691938613).

Almost surely, 2^{2758973128705} is an apocalyptic number.

It is an amenable number.

2758973128705 is a deficient number, since it is larger than the sum of its proper divisors (551794625747).

2758973128705 is an equidigital number, since it uses as much as digits as its factorization.

2758973128705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551794625746.

The product of its (nonzero) digits is 59270400, while the sum is 64.

The spelling of 2758973128705 in words is "two trillion, seven hundred fifty-eight billion, nine hundred seventy-three million, one hundred twenty-eight thousand, seven hundred five".