6810511504745 has 8 divisors (see below), whose sum is σ = 8801276406216. Its totient is φ = 5029300803456.

The previous prime is 6810511504733. The next prime is 6810511504751. The reversal of 6810511504745 is 5474051150186.

It can be written as a sum of positive squares in 4 ways, for example, as 664634193001 + 6145877311744 = 815251^2 + 2479088^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6810511504745 - 2¹⁶ = 6810511439209 is a prime.

It is a super-3 number, since 3×6810511504745³ (a number of 39 digits) contains 333 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 6810511504745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52388549972 + ... + 52388550101.

It is an arithmetic number, because the mean of its divisors is an integer number (1100159550777).

Almost surely, 2^{6810511504745} is an apocalyptic number.

6810511504745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6810511504745 is a deficient number, since it is larger than the sum of its proper divisors (1990764901471).

6810511504745 is a wasteful number, since it uses less digits than its factorization.

6810511504745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104777100091.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 6810511504745 in words is "six trillion, eight hundred ten billion, five hundred eleven million, five hundred four thousand, seven hundred forty-five".