6878125378816 has 18 divisors (see below), whose sum is σ = 13729383080882. Its totient is φ = 3439062689280.

The previous prime is 6878125378793. The next prime is 6878125378819. The reversal of 6878125378816 is 6188735218786.

It can be written as a sum of positive squares in only one way, i.e., 5211175840000 + 1666949538816 = 2282800^2 + 1291104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878125378819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13433838375 + ... + 13433838886.

Almost surely, 2^{6878125378816} is an apocalyptic number.

It is an amenable number.

6878125378816 is a deficient number, since it is larger than the sum of its proper divisors (6851257702066).

6878125378816 is an equidigital number, since it uses as much as digits as its factorization.

6878125378816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26867677277 (or 26867677263 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 70.

The spelling of 6878125378816 in words is "six trillion, eight hundred seventy-eight billion, one hundred twenty-five million, three hundred seventy-eight thousand, eight hundred sixteen".