6878753815693 has 4 divisors (see below), whose sum is σ = 7064666081020. Its totient is φ = 6692841550368.

The previous prime is 6878753815691. The next prime is 6878753815721. The reversal of 6878753815693 is 3965183578786.

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 3963272695209 + 2915481120484 = 1990797^2 + 1707478^2 .

It is a cyclic number.

It is not a de Polignac number, because 6878753815693 - 2¹ = 6878753815691 is a prime.

It is a super-2 number, since 2×6878753815693² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878753815691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92956132608 + ... + 92956132681.

It is an arithmetic number, because the mean of its divisors is an integer number (1766166520255).

Almost surely, 2^{6878753815693} is an apocalyptic number.

It is an amenable number.

6878753815693 is a deficient number, since it is larger than the sum of its proper divisors (185912265327).

6878753815693 is a wasteful number, since it uses less digits than its factorization.

6878753815693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185912265326.

The product of its digits is 1828915200, while the sum is 76.

The spelling of 6878753815693 in words is "six trillion, eight hundred seventy-eight billion, seven hundred fifty-three million, eight hundred fifteen thousand, six hundred ninety-three".