6871551601 has 4 divisors (see below), whose sum is σ = 7001203572. Its totient is φ = 6741899632.

The previous prime is 6871551593. The next prime is 6871551637. The reversal of 6871551601 is 1061551786.

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 2437989376 + 4433562225 = 49376^2 + 66585^2 .

It is a cyclic number.

It is not a de Polignac number, because 6871551601 - 2³ = 6871551593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6871551641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64825906 + ... + 64826011.

It is an arithmetic number, because the mean of its divisors is an integer number (1750300893).

Almost surely, 2^6871551601 is an apocalyptic number.

It is an amenable number.

6871551601 is a deficient number, since it is larger than the sum of its proper divisors (129651971).

6871551601 is a wasteful number, since it uses less digits than its factorization.

6871551601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129651970.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 6871551601 is about 82894.8225222782. The cubic root of 6871551601 is about 1901.1582596974.

The spelling of 6871551601 in words is "six billion, eight hundred seventy-one million, five hundred fifty-one thousand, six hundred one".