6875866657 has 4 divisors (see below), whose sum is σ = 7500945456. Its totient is φ = 6250787860.

The previous prime is 6875866651. The next prime is 6875866687. The reversal of 6875866657 is 7566685786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6875866657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6875866651) 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, 312539383 + ... + 312539404.

It is an arithmetic number, because the mean of its divisors is an integer number (1875236364).

Almost surely, 2^6875866657 is an apocalyptic number.

It is an amenable number.

6875866657 is a deficient number, since it is larger than the sum of its proper divisors (625078799).

6875866657 is a wasteful number, since it uses less digits than its factorization.

6875866657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625078798.

The product of its digits is 101606400, while the sum is 64.

The square root of 6875866657 is about 82920.8457325418. The cubic root of 6875866657 is about 1901.5561265477.

The spelling of 6875866657 in words is "six billion, eight hundred seventy-five million, eight hundred sixty-six thousand, six hundred fifty-seven".