6875657378 has 18 divisors (see below), whose sum is σ = 10959025971. Its totient is φ = 3234665344.

The previous prime is 6875657377. The next prime is 6875657381. The reversal of 6875657378 is 8737565786.

It can be written as a sum of positive squares in 5 ways, for example, as 888457249 + 5987200129 = 29807^2 + 77377^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=58633.

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 6875657378.

It is not an unprimeable number, because it can be changed into a prime (6875657377) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1991798 + ... + 1995246.

Almost surely, 2^6875657378 is an apocalyptic number.

6875657378 is a deficient number, since it is larger than the sum of its proper divisors (4083368593).

6875657378 is an frugal number, since it uses more digits than its factorization.

6875657378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934 (or 3468 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 62.

The square root of 6875657378 is about 82919.5838026217. The cubic root of 6875657378 is about 1901.5368339590.

The spelling of 6875657378 in words is "six billion, eight hundred seventy-five million, six hundred fifty-seven thousand, three hundred seventy-eight".